Baja California, officially the Free and Sovereign State of Baja California, is a state in
Mexico
Mexico, officially the United Mexican States, is a country in North America. It is the northernmost country in Latin America, and borders the United States to the north, and Guatemala and Belize to the southeast; while having maritime boundar ...
. It is the northwesternmost of the
32 federal entities of Mexico. Before becoming a state in 1952, the area was known as the North Territory of Baja California (). It has an area of (3.57% of the land mass of Mexico) and comprises the northern half of the
Baja California peninsula, north of the
28th parallel, plus oceanic
Guadalupe Island
Guadalupe Island () is a volcanic island located off the western coast of Mexico's Baja California peninsula and about southwest of the city of Ensenada in the state of Baja California, in the Pacific Ocean. The various volcanoes are extinc ...
. The mainland portion of the state is bordered on the west by the
Pacific Ocean
The Pacific Ocean is the largest and deepest of Earth's five Borders of the oceans, oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean, or, depending on the definition, to Antarctica in the south, and is ...
; on the east by
Sonora
Sonora (), officially Estado Libre y Soberano de Sonora (), is one of the 31 states which, along with Mexico City, comprise the Administrative divisions of Mexico, Federal Entities of Mexico. The state is divided into Municipalities of Sonora, 72 ...
, the
United States
The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
on the north and on the south by
Baja California Sur
Baja California Sur, officially the Free and Sovereign State of Baja California Sur, is a state in Mexico. It is the 31st and last state to be admitted, in 1974. It is also the second least populated Mexican state and the ninth-largest state by ...
.
The state has an estimated population of 3,769,020 as of 2020,
significantly higher than the sparsely populated Baja California Sur to the south, and similar to
San Diego County, California
San Diego County (), officially the County of San Diego, is a county (United States), county in the southwest corner of the U.S. state of California, north to its Mexico-United States border, border with Mexico. As of the 2020 United States Cen ...
, and
Imperial County, California
Imperial County is a county located on the southeast border of the U.S. state of California. As of the 2020 census, the population was 179,702, ranking as the least populous county in Southern California. The county seat and largest city is ...
, to its north. Over 75% of the population lives in
Mexicali
Mexicali (; ) is the capital city of the States of Mexico, Mexican state of Baja California. The city, which is the seat of the Mexicali Municipality, has a population of 689,775, according to the 2010 census, while the Calexico–Mexicali, Cale ...
(the state's capital city),
Ensenada
Ensenada ("inlet") is a city in Ensenada Municipality, Baja California, situated on the Pacific Coast of Mexico. Located on Bahía de Todos Santos, the city had a population of 279,765 in 2018, making it the third-largest city in Baja Californ ...
, or
Tijuana
Tijuana is the most populous city of the Mexican state of Baja California, located on the northwestern Pacific Coast of Mexico. Tijuana is the municipal seat of the Tijuana Municipality, the hub of the Tijuana metropolitan area and the most popu ...
(the state's largest city). Other important cities include
San Felipe,
Rosarito
is a coastal city in Playas de Rosarito Municipality, Baja California, on the Pacific Coast of Mexico. As of 2010, the city had a population of 65,278. Located south of the US–Mexico border, Rosarito is a part of the greater San Diego–Tiju ...
, and
Tecate
Tecate () is a city in Tecate Municipality, Baja California. It is across the Mexico–United States border, Mexico–US border from Tecate, California. As of 2019, the city had a population of 108,860 inhabitants, while the metropolitan area ha ...
.
Baja California is the 12th-largest state by area in Mexico. Its geography ranges from beaches to forests and deserts. The backbone of the state is the Sierra de Baja California, where
Picacho del Diablo
('Devil's Peak') is the highest peak on the Baja California peninsula, measuring . It is alternately called , meaning 'Hill of the Enchanted' or 'Hill of the Bewitched'. The peak is located in the Sierra de San Pedro Mártir, a part of the Pen ...
, the highest point of the peninsula, is located. This mountain range effectively divides the weather patterns in the state. In the northwest, the weather is semi-dry and
Mediterranean
The Mediterranean Sea ( ) is a sea connected to the Atlantic Ocean, surrounded by the Mediterranean basin and almost completely enclosed by land: on the east by the Levant in West Asia, on the north by Anatolia in West Asia and Southern ...
. In the narrow center, the weather changes to be more humid due to altitude. It is in this area where a few valleys can be found, such as the
Valle de Guadalupe
The Valle de Guadalupe (Guadalupe Valley) is an agricultural region in the Ensenada Municipality, Baja California, Mexico that produces an estimated 70 percent of Mexican wine. In recent years, it has become a popular tourist destination for wi ...
, the major wine-producing area in Mexico. To the east of the mountain range, the
Sonoran Desert
The Sonoran Desert () is a hot desert and ecoregion in North America that covers the northwestern Mexican states of Sonora, Baja California, and Baja California Sur, as well as part of the Southwestern United States (in Arizona and California). It ...
dominates the landscape. In the south, the weather becomes drier and gives way to the
Vizcaíno Desert. The state is also home to numerous islands off both of its shores. Baja California is also home to
Guadalupe Island
Guadalupe Island () is a volcanic island located off the western coast of Mexico's Baja California peninsula and about southwest of the city of Ensenada in the state of Baja California, in the Pacific Ocean. The various volcanoes are extinc ...
, the westernmost point of Mexico. The
Coronado Islands
The Coronado Islands (''Islas Coronado'' or ''Islas Coronados''; ; Kumeyaay language, Kumeyaay: ) are a group of islands located off the northwest coast of the Mexico, Mexican States of Mexico, state of Baja California. Battered by the wind and ...
,
Todos Santos islands, and
Cedros Island
Cedros Island (''Isla de Cedros'', "island of cedars" in Spanish (language), Spanish) is an island in the Pacific Ocean belonging to the state of Baja California, Mexico. The dry and rocky island had a population of 1,350 in 2005 and has an area o ...
are also on the Pacific shore. On the Gulf of California, the largest island is
Angel de la Guarda Island, separated from the peninsula by the deep and narrow
Canal de Ballenas.
History
Prehistory and Spanish colonial era
The first people came to the peninsula at least 11,000 years ago. At that time, two main native groups are thought to have been present on the peninsula – the
Cochimí
The Cochimí were the Indigenous inhabitants of the central part of the Baja California peninsula, from El Rosario in the north to San Javier in the south. Information on Cochimí customs and beliefs has been preserved in the brief observati ...
in the south, and several groups belonging to the
Yuman language family in the north, including the
Kiliwa,
Paipai,
Kumeyaay
The Kumeyaay, also known as 'Iipai-Tiipai or by the historical Spanish name Diegueño, is a tribe of Indigenous peoples of the Americas who live at the northern border of Baja California in Mexico and the southern border of California in the Uni ...
,
Cocopa
The Cocopah (Cocopah: Xawiƚƚ Kwñchawaay) are Native Americans who live in Baja California, Mexico, and Arizona, United States.
In the United States, Cocopah people belong to the federally recognized Cocopah Tribe of Arizona.
Name
The C ...
, and
Quechan
The Quechan ( Quechan: ''Kwatsáan'' 'those who descended'), or Yuma, are a Native American tribe who live on the Fort Yuma Indian Reservation on the lower Colorado River in Arizona and California just north of the Mexican border. Despite ...
. These peoples were diverse in their adaptations to the region. The Cochimí of the peninsula's Central Desert were generalized hunter-gatherers who moved frequently; however, the Cochimí on Cedros Island off the west coast developed a strong maritime economy. The Kiliwa, Paipai, and Kumeyaay in the better-watered northwest were also hunter-gatherers, but that region supported denser populations and a more sedentary lifestyle. The Cocopa and Quechan of northeastern Baja California practiced agriculture in the floodplain of the lower
Colorado River
The Colorado River () is one of the principal rivers (along with the Rio Grande) in the Southwestern United States and in northern Mexico. The river, the List of longest rivers of the United States (by main stem), 5th longest in the United St ...
.
Another group of people was the Guachimis, who came from the north and created much of the
UNESCO World Heritage
World Heritage Sites are landmarks and areas with legal protection under an international treaty
A treaty is a formal, legally binding written agreement between sovereign states and/or international organizations that is governed by int ...
-recognized
Sierra de Guadalupe cave paintings. Not much is known about them except that they lived in the area between 100BC and 1300AD.
Europeans reached the present state of Baja California in 1539, when
Francisco de Ulloa
Francisco de Ulloa () (died 1540) was a Spanish explorer who explored the west coast of present-day Mexico and the Baja California Peninsula under the commission of Hernán Cortés. Ulloa's voyage was among the first to disprove the cartograph ...
reconnoitered its east coast on the Gulf of California and explored the peninsula's west coast at least as far north as Cedros Island.
Hernando de Alarcón
Hernando de Alarcón (born 1500) was a Spanish explorer and navigator of the 16th century, noted for having led a 1540 expedition to the Colorado River Delta, during which he became one of the first Europeans to ascend the Colorado River fro ...
returned to the east coast and ascended the lower Colorado River in 1540, and
Juan Rodríguez Cabrillo
Juan Rodríguez Cabrillo (; 1497 – January 3, 1543) was a Portuguese maritime explorer best known for investigations of the west coast of North America, undertaken on behalf of the Spanish Empire. He was the first European to explore presen ...
(or João Rodrigues Cabrilho ) completed the reconnaissance of the west coast in 1542.
Sebastián Vizcaíno
Sebastián Vizcaíno (c. 1548–1624) was a Spanish soldier, entrepreneur, explorer, and diplomat whose varied roles took him to New Spain, the Baja California peninsula, the California coast and Asia.
Early career
Vizcaíno was born in ...
again surveyed the west coast in 1602, but outside visitors during the following century were few.
The
Jesuits
The Society of Jesus (; abbreviation: S.J. or SJ), also known as the Jesuit Order or the Jesuits ( ; ), is a religious order (Catholic), religious order of clerics regular of pontifical right for men in the Catholic Church headquartered in Rom ...
founded a permanent mission colony on the peninsula at
Loreto in 1697. During the following decades, they gradually extended their sway throughout the present state of Baja California Sur. In 1751–1753, the Croatian Jesuit mission-explorer
Ferdinand Konščak made overland explorations northward into the state of Baja California. Jesuit missions were subsequently established among the Cochimí at
Santa Gertrudis (1752),
San Borja (1762), and
Santa María (1767).
After the
expulsion of the Jesuits
The suppression of the Society of Jesus was the removal of all members of the Jesuits from most of Western Europe and their respective colonies beginning in 1759 along with the abolition of the order by the Holy See in 1773; the papacy acceded ...
in 1768, the short-lived
Franciscan
The Franciscans are a group of related organizations in the Catholic Church, founded or inspired by the Italian saint Francis of Assisi. They include three independent Religious institute, religious orders for men (the Order of Friars Minor bei ...
administration (1768–1773) resulted in one new mission at
San Fernando Velicatá. More importantly, the 1769 expedition to settle Alta California under
Gaspar de Portolà
Gaspar is a given and/or surname of French, German, Portuguese, and Spanish origin, cognate to Casper (given name) or Casper (surname).
It is a name of christian origin, per Saint Gaspar, one of the three wise men mentioned in the Armenian ...
and
Junípero Serra
Saint Junípero Serra Ferrer (; ; November 24, 1713August 28, 1784), popularly known simply as Junipero Serra, was a Spanish Roman Catholic, Catholic priest and missionary of the Franciscan Order. He is credited with establishing the Francis ...
resulted in the first overland exploration of the northwestern portion of the state.

The
Dominicans
Dominicans () also known as Quisqueyans () are an ethnic group, ethno-nationality, national people, a people of shared ancestry and culture, who have ancestral roots in the Dominican Republic.
The Dominican ethnic group was born out of a fusio ...
took over management of the Baja California missions from the Franciscans in 1773. They established a chain of new missions among the northern Cochimí and western Yumans, first on the coast and subsequently inland, extending from
El Rosario (1774) to
Descanso (1817), just south of Tijuana below the
Palóu Line
The Palóu Line was the boundary between Alta California and Baja California, demarcated by Franciscan missionary, Francisco Palóu to distinguish Franciscans, Franciscan and Dominican Order, Dominican areas of mission control during the Spanish E ...
.
In 1804, the Spanish crown divided California into
Alta ('Upper') and
Baja ('Lower') California at the line separating the
Franciscan
The Franciscans are a group of related organizations in the Catholic Church, founded or inspired by the Italian saint Francis of Assisi. They include three independent Religious institute, religious orders for men (the Order of Friars Minor bei ...
missions in the north from the
Dominican missions in the south.
The colonial governors were José Joaquín de Arillaga (1804–1805),
Felipe de Goicoechea Don Felipe Antonio de Goicoechea was born in 1747 in Cosalá, Sinaloa, Mexico. He joined the Spanish military at age 35 as a cadet. In June 1782, was promoted to alférez. In 1783 while serving in the presidial company of Buenavista (Lower Calif ...
(1806–1814),
and
José Darío Argüello
José Darío Argüello (1753–1828) was a Querétaro-born Californio politician, soldier, and ranchero. He served as interim Governor of Alta California and then a term as Governor of Baja California.
Biography
José Darío Argüello was born ...
(1814April 11, 1822).
Post-independence, 1821–present
Early republic
Mexican liberals were concerned that the
Roman Catholic Church
The Catholic Church (), also known as the Roman Catholic Church, is the List of Christian denominations by number of members, largest Christian church, with 1.27 to 1.41 billion baptized Catholics Catholic Church by country, worldwid ...
retained too much power in the post-independence period and sought to undermine it by mandating the
secularization of missions in 1833. In the aftermath of the
Mexican American War
Mexican may refer to:
Mexico and its culture
*Being related to, from, or connected to the country of Mexico, in North America
** People
*** Mexicans, inhabitants of the country Mexico and their descendants
*** Mexica, ancient indigenous people ...
(1846–1848) and the
Treaty of Guadalupe Hidalgo
The Treaty of Guadalupe Hidalgo officially ended the Mexican–American War (1846–1848). It was signed on 2 February 1848 in the town of Villa de Guadalupe, Mexico City, Guadalupe Hidalgo.
After the defeat of its army and the fall of the cap ...
, the United States gained sovereignty over territory previously held first by
New Spain
New Spain, officially the Viceroyalty of New Spain ( ; Nahuatl: ''Yankwik Kaxtillan Birreiyotl''), originally the Kingdom of New Spain, was an integral territorial entity of the Spanish Empire, established by Habsburg Spain. It was one of several ...
and then Mexico, most of which was sparsely settled. Alta California was incorporated into the U.S., and during the
California Gold Rush
The California gold rush (1848–1855) began on January 24, 1848, when gold was found by James W. Marshall at Sutter's Mill in Coloma, California. The news of gold brought approximately 300,000 people to California from the rest of the U ...
, quickly gained enough population to be admitted to the union as a state. Baja California gains control of where is now the cities of
Tijuana
Tijuana is the most populous city of the Mexican state of Baja California, located on the northwestern Pacific Coast of Mexico. Tijuana is the municipal seat of the Tijuana Municipality, the hub of the Tijuana metropolitan area and the most popu ...
,
Mexicali
Mexicali (; ) is the capital city of the States of Mexico, Mexican state of Baja California. The city, which is the seat of the Mexicali Municipality, has a population of 689,775, according to the 2010 census, while the Calexico–Mexicali, Cale ...
, and
Tecate
Tecate () is a city in Tecate Municipality, Baja California. It is across the Mexico–United States border, Mexico–US border from Tecate, California. As of 2019, the city had a population of 108,860 inhabitants, while the metropolitan area ha ...
from Alta California after the treaty and remained under Mexican control. In 1853, soldier of fortune (
mercenary
A mercenary is a private individual who joins an armed conflict for personal profit, is otherwise an outsider to the conflict, and is not a member of any other official military. Mercenaries fight for money or other forms of payment rather t ...
)
William Walker William Walker may refer to:
Arts
* William Walker (engraver) (1791–1867), mezzotint engraver of portrait of Robert Burns
* William Sidney Walker (1795–1846), English Shakespearean critic
* William Walker (composer) (1809–1875), American Bap ...
captured
La Paz
La Paz, officially Nuestra Señora de La Paz (Aymara language, Aymara: Chuqi Yapu ), is the seat of government of the Bolivia, Plurinational State of Bolivia. With 755,732 residents as of 2024, La Paz is the List of Bolivian cities by populati ...
, declaring himself president of the
Republic of Baja California
The Republic of Lower California, also known as the Republic of Baja California, was a proposed state from 1853 to 1854, after American private military leader William Walker failed to invade Sonora from Arizona. Walker wanted to appropriate So ...
. The Mexican government forced his retreat after several months.
Era of Porfirio Díaz
When liberal army general
Porfirio Díaz
José de la Cruz Porfirio Díaz Mori (; ; 15 September 1830 – 2 July 1915) was a General (Mexico), Mexican general and politician who was the dictator of Mexico from 1876 until Mexican Revolution, his overthrow in 1911 seizing power in a Plan ...
came to power in 1876, he embarked on a major program to develop and modernize Mexico.
*1884: Luis Huller and
George H. Sisson obtain a concession covering much of the present state in return for promises to develop the area.
*1905: The ''
Magonista'' revolution, an
anarchist
Anarchism is a political philosophy and Political movement, movement that seeks to abolish all institutions that perpetuate authority, coercion, or Social hierarchy, hierarchy, primarily targeting the state (polity), state and capitalism. A ...
movement based on the writings of
Ricardo Flores Magón
Cipriano Ricardo Flores Magón (; known as Ricardo Flores Magón; September 16, 1874 – November 21, 1922) was a Mexican anarchist and social reform activist. His brothers Enrique Flores Magón, Enrique and Jesús Flores Magón, Jesús were ...
and
Enrique Flores Magón
Enrique Flores Magón (13 April 1877 – 28 October 1954) was a Mexican journalist and politician, associated with the Mexican Liberal Party and anarchism. His name is most frequently linked with that of his elder brother, Ricardo Flores Magó ...
, begins.
*1911: Mexicali and Tijuana are captured by the
Mexican Liberal Party
The Mexican Liberal Party (, PLM) was founded in August 1900 when engineer Camilo Arriaga published a manifesto entitled (Invitation to the Liberal Party). The invitation was addressed to Mexican liberals who were dissatisfied with the wa ...
(, PLM), but soon surrender to Federal forces.
Postrevolutionary Mexico
*1917: On 11 December, "
prominent Mexican, close friend of President
Carranza" offered to
U.S. Senator
The United States Senate is a chamber of the bicameral United States Congress; it is the upper house, with the U.S. House of Representatives being the lower house. Together, the Senate and House have the authority under Article One of the ...
Henry Ashurst to sell Baja California to the U.S. for "fifty million dollars gold".
*1931: Baja California is further divided into Northern and Southern territories.
*1952: The ''North Territory of Baja California'' becomes the 29th state of
Mexico
Mexico, officially the United Mexican States, is a country in North America. It is the northernmost country in Latin America, and borders the United States to the north, and Guatemala and Belize to the southeast; while having maritime boundar ...
, Baja California. The southern portion (below 28°N) remains a federally administered territory.
*1974: The ''South Territory of Baja California'' becomes the 31st state, Baja California Sur.
*1989:
Ernesto Ruffo Appel
Ernesto Ruffo Appel (born 25 June 1952) is a Mexican politics, politician, who served as the 10th governor of Baja California from 1989 to 1995. A member of the National Action Party (Mexico), National Action Party (PAN), Ruffo was the first List ...
of the
National Action Party (PAN) becomes the first non-
Institutional Revolutionary Party
The Institutional Revolutionary Party (, , PRI) is a List of political parties in Mexico, political party in Mexico that was founded in 1929 as the National Revolutionary Party (, PNR), then as the Party of the Mexican Revolution (, PRM) and fin ...
governor of Baja California and the first opposition governor of any state since the
Revolution
In political science, a revolution (, 'a turn around') is a rapid, fundamental transformation of a society's class, state, ethnic or religious structures. According to sociologist Jack Goldstone, all revolutions contain "a common set of elements ...
. Baja California would acquire a reputation as a stronghold for PAN into the 2010s.
Geography

Baja California encompasses a territory within
the Californias
The Californias (), occasionally known as the Three Californias or the Two Californias, are a region of North America spanning the United States and Mexico, consisting of the U.S. state of California and the Mexican states of Baja California a ...
region of North America, which exhibits diverse geography for a relatively small area. The
Peninsular ranges
The Peninsular Ranges (also called the Lower California province) are a group of mountain ranges that stretch from Southern California to the southern tip of the Baja California peninsula; they are part of the North American Pacific Coast Range ...
of the California cordillera run down the geographic center of the state. The most notable ranges of these mountains are the
Sierra de Juárez
The Sierra de Juárez, also known as the Sierra Juarez, is a mountain range located in Tecate Municipality and northern Ensenada Municipality, within the northern Baja California state of northwestern Mexico.
It is a major mountain range in ...
and the
Sierra de San Pedro Mártir
Sierra de San Pedro Mártir ( Kiliwa: ʔxaal haq, ) is a mountain range located within southern Ensenada Municipality and southern Baja California state, of northwestern Mexico.
It is a major mountain range in the long Peninsular Ranges System, ...
. These ranges are the location of forests reminiscent of
Southern California
Southern California (commonly shortened to SoCal) is a geographic and Cultural area, cultural List of regions of California, region that generally comprises the southern portion of the U.S. state of California. Its densely populated coastal reg ...
's
San Gabriel Mountains
The San Gabriel Mountains () are a mountain range located in Los Angeles and San Bernardino counties, California, United States. The mountain range is part of the Transverse Ranges and lies between the Los Angeles Basin and the Mojave Desert ...
. Picacho del Diablo is the highest peak on the peninsula. Valleys between the mountain ranges are located within a climate zone that is suitable for agriculture. Such valleys include the Valle de Guadalupe and the Valle de Ojos Negros, areas that produce citrus fruits and grapes. The mineral-rich mountain range extends southwards to the Gulf of California, where the western slope becomes wider, forming the Llanos del Berrendo on the border with Baja California Sur. The mountain ranges located in the center and southern part of the state include the
Sierra de La Asamblea
The Sierra de La Asamblea, also referred to as San Luis, Sierra de Yuba, or Sierra de Jubai, is an isolated mountain range in Baja California. The range reaches a height of 1,661 metres, and is separated from southernmost end of the Sierra de San ...
, Sierra de Calamajué, Sierra de San Luis and the
Sierra de San Borja.

Temperate winds from the Pacific Ocean and the cold
California Current
The California Current () is a cold water Pacific Ocean ocean current, current that moves southward along the western coast of North America, beginning off southern British Columbia and ending off southern Baja California Sur. It is considered an ...
make the climate along the northwestern coast pleasant year-round. As a result of the state's location on the California Current, rains from the north barely reach the peninsula, thus leaving southern areas drier. South of the
El Rosario River, the state changes from a Mediterranean landscape to a desert one. This desert exhibits diverse
succulent
In botany, succulent plants, also known as succulents, are plants with parts that are thickened, fleshy, and engorged, usually to retain water in arid climates or soil conditions. The word ''succulent'' comes from the Latin word ''sucus'', meani ...
species that flourish in part due to the
coastal fog.
To the east, the Sonoran Desert enters the state from both California and Sonora. Some of the highest temperatures in Mexico are recorded in or nearby the Mexicali Valley. However, with irrigation from the Colorado River, this area has become a true
agricultural center. The
Cerro Prieto geothermal province is near Mexicali as well (this area is geologically part of a large
pull apart basin); it produces about 80% of the electricity consumed in the state and enough additional power to export to California.
Laguna Salada
Laguna Salada (, ''Salt Lake'') is a municipality (''municipio'') of the Valverde province in the Dominican Republic. Within the municipality there are three municipal districts (''distritos municipal''): Cruce de Guayacanes, Jaibón and La ...
, a saline lake below sea level lying between the rugged Sierra de Juárez and the Sierra de los Cucapah, is also in the vicinity of Mexicali. The state government has recently been considering plans to revive Laguna Salada. The highest mountain in the Sierra de los Cucapah is Cerro del Centinela or
Mount Signal. The Cucapah are the primary indigenous people from the mountains north to
Yuma, Arizona
Yuma is a city in and the county seat of Yuma County, Arizona, United States. The city's population was 95,548 at the 2020 census, up from the 2010 census population of 93,064.
Yuma is the principal city of the Yuma, Arizona, Metropolitan ...
.

There are numerous islands on the Pacific shore. Guadalupe Island is located in the extreme west of the state's boundaries and is the site of large colonies of
sea lion
Sea lions are pinnipeds characterized by external ear flaps, long foreflippers, the ability to walk on all fours, short and thick hair, and a big chest and belly. Together with the fur seals, they make up the family Otariidae, eared seals. ...
s. Cedros Island exists in the southwest of the state's maritime region. The Todos Santos islands and Coronado Islands are located off the coasts of Ensenada and Tijuana, respectively. All of the islands in the Gulf of California on the Baja California side belong to the municipality of Mexicali.
Baja California obtains much of its water from the Colorado River. Historically, the river drained into the
Colorado River Delta
The Colorado River Delta is the region where the Colorado River once flowed into the Gulf of California (also known as the Sea of Cortez) in eastern Mexicali Municipality in the north of the state of Baja California, in northwestern Mexico. The ...
and then flowed into the Gulf of California, but due to large demands for water in the
American Southwest
The Southwestern United States, also known as the American Southwest or simply the Southwest, is a geographic and cultural list of regions of the United States, region of the United States that includes Arizona and New Mexico, along with adjacen ...
, less water now reaches the Gulf. The
Tijuana metropolitan area also relies on the
Tijuana River
The Tijuana River () is an intermittent river, 120 mi (195 km) long, near the Pacific coast of northern Baja California state in northwestern Mexico and Southern California in the western United States. The river is heavily polluted wi ...
as a source of water. Much of rural Baja California depends predominantly on wells, a few dams and even oases. Tijuana also purchases water from San Diego County's Otay Water District. Potable water is the largest natural resource issue of the state.
Climate

Baja California's climate varies from
Mediterranean
The Mediterranean Sea ( ) is a sea connected to the Atlantic Ocean, surrounded by the Mediterranean basin and almost completely enclosed by land: on the east by the Levant in West Asia, on the north by Anatolia in West Asia and Southern ...
to
arid
Aridity is the condition of geographical regions which make up approximately 43% of total global available land area, characterized by low annual precipitation, increased temperatures, and limited water availability.Perez-Aguilar, L. Y., Plata ...
. The Mediterranean climate is found in the northwestern corner of the state, where the summers are dry and mild and the winters cool and rainy. This climate is observed in areas from Tijuana to
San Quintín and nearby interior valleys. The cold oceanic California Current often creates a low-level marine fog near the coast. The fog occurs along any part of the Pacific coast of the state.

The change of altitude towards the Sierra de Baja California creates an
alpine climate
Alpine climate is the typical climate for elevations above the tree line, where trees fail to grow due to cold. This climate is also referred to as a mountain climate or highland climate.
Definition
There are multiple definitions of alpine cli ...
in this region. Summers are cool, while winters can be cold with below freezing temperatures at night. It is common to see snow in the Sierra de Juárez, Sierra de San Pedro Mártir and in the valleys in between the two ranges from December to April. Due to
orographic
Orography is the study of the topographic relief of mountains, and can more broadly include hills, and any part of a region's elevated terrain. Orography (also known as ''oreography'', ''orology,'' or ''oreology'') falls within the broader disc ...
effects, precipitation is much higher in the mountains of northern Baja California than on the western coastal plain or eastern desert plain. Pine, cedar and fir forests are found in the mountains.
The east side of the mountains produces a
rain shadow
A rain shadow is an area of significantly reduced rainfall behind a mountainous region, on the side facing away from prevailing winds, known as its leeward side.
Evaporated moisture from body of water, bodies of water (such as oceans and larg ...
, creating an extremely arid environment. The Sonoran Desert region of Baja California experiences hot summers and nearly frostless mild winters. The Mexicali Valley (which is below sea level) experiences the highest temperatures in Mexico, frequently surpassing in mid-summer, and exceeding on some occasions.
Further south along the Pacific coast, the Mediterranean climate transitions into a desert climate, but it is milder and not as hot as along the gulf coast. Transition climates, from Mediterranean to desert, can be found from San Quintín to
El Rosario. Further inland and along the Gulf of California, the vegetation is scarce and temperatures are very high during the summer months. The islands in the Gulf of California also have a desert climate. Some oases can be found in the desert where few towns are located – for instance,
Catavina, San Borja and Santa Gertrudis.
Flora and fauna
Common trees in the high elevations are the
Jeffrey pine
''Pinus jeffreyi'', also known as Jeffrey pine, Jeffrey's pine, yellow pine and black pine, is a North American pine tree. It is mainly found in California, but also in the westernmost part of Nevada, southwestern Oregon, and northern Baja Califo ...
,
sugar pine
''Pinus lambertiana'' (commonly known as the sugar pine or sugar cone pine) is the tallest and most massive pine tree and has the longest Conifer cone, cones of any conifer. It is native to coastal and inland mountain areas along the Pacific coa ...
and
pinon pine.
Understory
In forestry and ecology, understory (American English), or understorey (English in the Commonwealth of Nations, Commonwealth English), also known as underbrush or undergrowth, includes plant life growing beneath the Canopy (biology), forest ca ...
species include
manzanita
Manzanita is a common name for many species of the genus '' Arctostaphylos''. They are evergreen shrubs or small trees present in the chaparral biome of western North America, where they occur from Southern British Columbia and Washington to O ...
. There is a variety of reptiles, including the
western fence lizard
The western fence lizard (''Sceloporus occidentalis'') is a species of lizard native to Arizona, New Mexico, and California, as well as Idaho, Nevada, Oregon, Utah, Washington, and Northern Mexico. The species is widely found in its native range ...
, which is at the southern extent of its range. The name of the fish genus ''
Bajacalifornia
''Bajacalifornia'' is a genus of slickheads. It was described in 1925 by Charles Haskins Townsend and John Treadwell Nichols on the basis of ''Bajacalifornia burragei''Deep sea fishes of the ''Albatross'' Lower California Expedition. Bulletin o ...
'' is derived from the Baja California peninsula.
In the main wildlife refuges on the peninsula of Baja California,
Constitution 1857 National Park
Constitution 1857 National Park (Spanish: ) is a national park of Mexico located in the pine forests of the Sierra de Juárez mountain range in the northern part of Baja California. The park is an important preserve for many native wild animals l ...
and
Sierra de San Pedro Mártir National Park, several coniferous species can be found. The most abundant are Jeffrey pine, ''
Pinus ponderosa
''Pinus ponderosa'', commonly known as the ponderosa pine, bull pine, blackjack pine, western yellow-pine, or filipinus pine, is a very large pine tree species of variable habitat native to mountainous regions of western North America. It is th ...
'', ''
Pinus cembroides
''Pinus cembroides'', also known as pinyon pine, Mexican pinyon, Mexican nut pine, and Mexican stone pine, is a pine in the pinyon pine group.
It is a small pine growing to about with a trunk diameter of up to . It is native to western North Am ...
'', ''
Pinus quadrifolia
''Pinus quadrifolia'', the Parry pinyon, is a pine in the pinyon pine group native to southernmost California in the United States and northern Baja California in Mexico, from 33° 30' N south to 30° 30' N. The Parry pinyon has a lifespan of aro ...
'', ''
Pinus monophylla
''Pinus monophylla'', the single-leaf pinyon, (alternatively spelled piñon) is a pine in the pinyon pine group, native to North America. The range is in southernmost Idaho, western Utah, Arizona, southwest New Mexico, Nevada, eastern and southe ...
'', ''
Juniperus
Junipers are coniferous trees and shrubs in the genus ''Juniperus'' ( ) of the cypress family Cupressaceae. Depending on the taxonomy, between 50 and 67 species of junipers are widely distributed throughout the Northern Hemisphere as far south ...
'',
''Arctostaphylos pringlei'' subsp. ''drupacea'', ''
Artemisia ludoviciana
''Artemisia ludoviciana'' is a North American species of flowering plant in the daisy family Asteraceae, known by several common names, including silver wormwood, western mugwort, Louisiana wormwood, white sagebrush, lobed cud-weed, prairie sage ...
'' and ''
Adenostoma sparsifolium
''Adenostoma sparsifolium'', commonly known as redshanks or less commonly (outside of area of its principal distribution), ribbonwood or ribbon bush, is a multi-trunked tree or shrub native to dry slopes or chaparral of Southern California and no ...
''. Baja California shares many plant species with the
Laguna Mountains
The Laguna Mountains are a mountain range of the Peninsular Ranges in eastern San Diego County, California. The mountains run in a northwest/southeast alignment for approximately .
The mountains have long been inhabited by the indigenous Kumey ...
and
San Jacinto Mountains
The San Jacinto Mountains ()Munro, P., et al. ''A Mojave Dictionary''. Los Angeles: UCLA. 1992. are a mountain range in Riverside County, California, Riverside County, located east of Los Angeles, California, Los Angeles in southern California i ...
in southwest California. The lower elevations of the Sierra de Juárez are characterized by
chaparral
Chaparral ( ) is a shrubland plant plant community, community found primarily in California, southern Oregon, and northern Baja California. It is shaped by a Mediterranean climate (mild wet winters and hot dry summers) and infrequent, high-intens ...
and
desert shrub.
Guadalupe Island
Guadalupe Island () is a volcanic island located off the western coast of Mexico's Baja California peninsula and about southwest of the city of Ensenada in the state of Baja California, in the Pacific Ocean. The various volcanoes are extinc ...
and its surrounding waters, off the Pacific coast, has been designated the
Guadalupe Island Biosphere Reserve
The Guadalupe Island Biosphere Reserve, (Reserva de la Biosfera Isla Guadalupe in Spanish), is in the Pacific Ocean and part of Baja California state of Mexico. The Reserve consists of Guadalupe Island and several small islands nearby plus a lar ...
to preserve endangered marine and terrestrial species of animals and plants.
The fauna in the parks include a large number of mammals, primarily
mule deer
The mule deer (''Odocoileus hemionus'') is a deer indigenous to western North America; it is named for its ears, which are large like those of the mule. Two subspecies of mule deer are grouped into the black-tailed deer.
Unlike the related whit ...
,
bighorn sheep
The bighorn sheep (''Ovis canadensis'') is a species of Ovis, sheep native to North America. It is named for its large Horn (anatomy), horns. A pair of horns may weigh up to ; the sheep typically weigh up to . Recent genetic testing indicates th ...
,
cougar
The cougar (''Puma concolor'') (, ''Help:Pronunciation respelling key, KOO-gər''), also called puma, mountain lion, catamount and panther is a large small cat native to the Americas. It inhabits North America, North, Central America, Cent ...
s,
bobcat
The bobcat (''Lynx rufus''), also known as the wildcat, bay lynx, or red lynx, is one of the four extant species within the medium-sized wild cat genus '' Lynx''. Native to North America, it ranges from southern Canada through most of the c ...
s,
ringtail cats,
coyote
The coyote (''Canis latrans''), also known as the American jackal, prairie wolf, or brush wolf, is a species of canis, canine native to North America. It is smaller than its close relative, the Wolf, gray wolf, and slightly smaller than the c ...
s,
rabbit
Rabbits are small mammals in the family Leporidae (which also includes the hares), which is in the order Lagomorpha (which also includes pikas). They are familiar throughout the world as a small herbivore, a prey animal, a domesticated ...
s,
squirrel
Squirrels are members of the family Sciuridae (), a family that includes small or medium-sized rodents. The squirrel family includes tree squirrels, ground squirrels (including chipmunks and prairie dogs, among others), and flying squirrel ...
s and more than 30 species of
bat
Bats are flying mammals of the order Chiroptera (). With their forelimbs adapted as wings, they are the only mammals capable of true and sustained flight. Bats are more agile in flight than most birds, flying with their very long spread-out ...
s. The park is also home to many avian species like
bald eagle
The bald eagle (''Haliaeetus leucocephalus'') is a bird of prey found in North America. A sea eagle, it has two known subspecies and forms a species pair with the white-tailed eagle (''Haliaeetus albicilla''), which occupies the same niche ...
s,
golden eagle
The golden eagle (''Aquila chrysaetos'') is a bird of prey living in the Northern Hemisphere. It is the most widely distributed species of eagle. Like all eagles, it belongs to the family Accipitridae. They are one of the best-known bird of pr ...
s,
falcon
Falcons () are birds of prey in the genus ''Falco'', which includes about 40 species. Some small species of falcons with long, narrow wings are called hobbies, and some that hover while hunting are called kestrels. Falcons are widely distrib ...
s,
woodpecker
Woodpeckers are part of the bird family (biology), family Picidae, which also includes the piculets, wrynecks and sapsuckers. Members of this family are found worldwide, except for Australia, New Guinea, New Zealand, Madagascar and the extreme ...
s,
black vulture
The black vulture (''Coragyps atratus''), also known as the American black vulture, Mexican vulture, zopilote, urubu, or gallinazo, is a bird in the New World vulture family whose range extends from the southeastern United States to Peru, Ce ...
s,
crow
A crow is a bird of the genus ''Corvus'', or more broadly, a synonym for all of ''Corvus''. The word "crow" is used as part of the common name of many species. The related term "raven" is not linked scientifically to any certain trait but is rathe ...
s, and several species of
Sittidae
The nuthatches () constitute a genus, ''Sitta'', of small passerine birds belonging to the family Sittidae. Characterised by large heads, short tails, and powerful bills and feet, nuthatches advertise their territory using loud, simple songs. Mo ...
and
duck
Duck is the common name for numerous species of waterfowl in the family (biology), family Anatidae. Ducks are generally smaller and shorter-necked than swans and goose, geese, which are members of the same family. Divided among several subfam ...
.
2010 earthquakes
At 3:40:41 pm PDT on Easter Sunday, 4 April 2010, a 7.2 (on the
moment magnitude scale
The moment magnitude scale (MMS; denoted explicitly with or Mwg, and generally implied with use of a single M for magnitude) is a measure of an earthquake's magnitude ("size" or strength) based on its seismic moment. was defined in a 1979 paper ...
) magnitude northwest-trending
strike-slip earthquake
In geology, a fault is a planar fracture or discontinuity in a volume of rock across which there has been significant displacement as a result of rock-mass movements. Large faults within Earth's crust result from the action of plate tectonic f ...
hit the
Mexicali Valley
Mexicali (; ) is the capital city of the Mexican state of Baja California. The city, which is the seat of the Mexicali Municipality, has a population of 689,775, according to the 2010 census, while the Calexico–Mexicali metropolitan area is h ...
, with its
epicenter
The epicenter (), epicentre, or epicentrum in seismology is the point on the Earth's surface directly above a hypocenter or focus, the point where an earthquake or an underground explosion originates.
Determination
The primary purpose of a ...
southwest of the city of
Guadalupe Victoria, Baja California
Guadalupe Victoria, also known as the 43, is a small city in the state of Baja California in northern Mexico. Its population at the 2018 census was 20,222 inhabitants. It is located in the municipality of Mexicali and serves as a borough seat of i ...
. The main shock was felt as far as the
Los Angeles
Los Angeles, often referred to by its initials L.A., is the List of municipalities in California, most populous city in the U.S. state of California, and the commercial, Financial District, Los Angeles, financial, and Culture of Los Angeles, ...
,
Las Vegas
Las Vegas, colloquially referred to as Vegas, is the most populous city in the U.S. state of Nevada and the county seat of Clark County. The Las Vegas Valley metropolitan area is the largest within the greater Mojave Desert, and second-l ...
,
Phoenix and
Tucson metropolitan area
Tucson (; ; ) is a city in Pima County, Arizona, United States, and its county seat. It is the second-most populous city in Arizona, behind Phoenix, with a population of 542,630 in the 2020 United States census. The Tucson metropolitan s ...
s, and in
Yuma. At least a half-dozen
aftershock
In seismology, an aftershock is a smaller earthquake that follows a larger earthquake, in Epicenter, the same area of the Mainshock, main shock, caused as the displaced Crust (geology), crust adjusts to the effects of the main shock. Large earthq ...
s with magnitudes between 5.0 and 5.4 were reported, including a 5.1-magnitude shaker at 4:14 am that was centered near
El Centro
El Centro ( Spanish for "The Center") is a city and county seat of Imperial County, California, United States. El Centro is the most populous city in the Imperial Valley, the east anchor of the Southern California Border Region, and the co ...
. As of 6:31am PDT on 5 April 2010, two people were confirmed dead.
Government
Municipalities of Baja California
Baja California is subdivided into seven ''
municipios
A ' () or ' () is an administrative division in several Hispanophone and Lusophone nations, respectively. It is often translated as "municipality." It comes from ''mūnicipium'' (), meaning a township.
In English, a municipality often is defined ...
'' ('
municipalities
A municipality is usually a single administrative division having municipal corporation, corporate status and powers of self-government or jurisdiction as granted by national and regional laws to which it is subordinate.
The term ''municipality' ...
'):
Ensenada
Ensenada ("inlet") is a city in Ensenada Municipality, Baja California, situated on the Pacific Coast of Mexico. Located on Bahía de Todos Santos, the city had a population of 279,765 in 2018, making it the third-largest city in Baja Californ ...
,
Mexicali
Mexicali (; ) is the capital city of the States of Mexico, Mexican state of Baja California. The city, which is the seat of the Mexicali Municipality, has a population of 689,775, according to the 2010 census, while the Calexico–Mexicali, Cale ...
,
Tecate
Tecate () is a city in Tecate Municipality, Baja California. It is across the Mexico–United States border, Mexico–US border from Tecate, California. As of 2019, the city had a population of 108,860 inhabitants, while the metropolitan area ha ...
,
Tijuana
Tijuana is the most populous city of the Mexican state of Baja California, located on the northwestern Pacific Coast of Mexico. Tijuana is the municipal seat of the Tijuana Municipality, the hub of the Tijuana metropolitan area and the most popu ...
,
Rosarito
is a coastal city in Playas de Rosarito Municipality, Baja California, on the Pacific Coast of Mexico. As of 2010, the city had a population of 65,278. Located south of the US–Mexico border, Rosarito is a part of the greater San Diego–Tiju ...
,
San Quintín and
San Felipe.
Politics
State elections

In Baja California, state elections are held every two years (every three years prior to 2019) for the positions of
state governor
A governor is an administrative leader and head of a polity or political region, in some cases, such as governors-general, as the head of a state's official representative. Depending on the type of political region or polity, a ''governor'' ma ...
, 25 state deputies of the
Congress of Baja California
The Congress of the State of Baja California () is the legislative branch of the government of the State of Baja California. The Congress is the governmental deliberative body of Baja California, which is equal to, and independent of, the exec ...
, and 5 municipal mayors. Of the 25 state deputies, 17 are elected by relative majority in each of the electoral districts, while another 8 are elected by proportional representation. The 17 deputies elected by relative majority may be re-elected for up to four consecutive terms, while the other 8 deputies can only serve one term.
During the 2019 Baja California state election,
Jaime Bonilla Valdez
Jaime Bonilla Valdez (born 9 June 1950) is a Mexican politician and entrepreneur who served as the Governor of Baja California from 2019 to 2021. A member of the National Regeneration Movement party, he has been a Federal Congressman and a Sen ...
of the
Morena
Morena or MORENA may refer to:
Places
* Morena, Madhya Pradesh, a town in central India
* Morena (Lok Sabha constituency), Madhya Pradesh
* Morena (Vidhan Sabha constituency), Madhya Pradesh
* Morena, San Diego, California, a neighborhood
* Mo ...
-led
Juntos Hacemos Historia
Juntos Hacemos Historia () was a Mexican electoral alliance formed by the National Regeneration Movement (MORENA), the Labor Party (Mexico), Labor Party (PT), and the Ecologist Green Party of Mexico (PVEM) to compete in the 2021 Mexican legislativ ...
coalition won by a margin of 27.58% to become the governor of Baja California. In addition, 21 out of 25 state deputy positions and all 5 municipal mayoral positions were won by candidates aligned with the Juntos Hacemos Historia coalition.
During the 2021 Baja California state election,
Marina del Pilar Ávila Olmeda
Marina del Pilar Ávila Olmeda (born 19 October 1985) is a Mexican politician and attorney. A member of the National Regeneration Movement (Morena (political party), MORENA), she is the current Governor of Baja California, Governor of Baja Ca ...
of the Morena-led
Juntos Hacemos Historia
Juntos Hacemos Historia () was a Mexican electoral alliance formed by the National Regeneration Movement (MORENA), the Labor Party (Mexico), Labor Party (PT), and the Ecologist Green Party of Mexico (PVEM) to compete in the 2021 Mexican legislativ ...
coalition won by a margin of 17.49% to become the first female governor of Baja California. Of the state's 25 local deputies, 13 were won by Morena-aligned candidates, followed in a distant second place by candidates of the
Solidarity Encounter Party
The Solidarity Encounter Party (, PES) is a state-level List of political parties in Mexico, political party in Mexico. The party president is Hugo Eric Flores Cervantes.
It is supposed to be the functional replacement for the Social Encounter ...
(PES),
National Action Party (PAN), and
Labor Party (PT) with 3 seats each. All 5 municipal mayoral positions were again won by Morena-aligned candidates.
In the
2024 Baja California state election
The 2024 Mexican local elections were held on 2 June 2024, during which voters elected eight governors for six-year terms, the Head of Government of Mexico City for a six-year term, deputies for thirty-one state congresses, and officials for 1, ...
, Morena gained an extra seat in the State Congress.
Federal elections
During the
2018 Mexican general election
General elections were held in Mexico on 1 July 2018. Voters elected a new president to serve a six-year term, 128 members of the Senate for six years and 500 members of the Chamber of Deputies for three years. It was one of the largest electio ...
, the presidential vote of Baja California was won by a landslide of almost 44% by
Andrés Manuel López Obrador
Andrés Manuel López Obrador (; born 13 November 1953), also known by his initials AMLO, is a Mexican former politician, political scientist, public administrator and writer who served as the 65th president of Mexico from 2018 to 2024. He se ...
of the
Morena
Morena or MORENA may refer to:
Places
* Morena, Madhya Pradesh, a town in central India
* Morena (Lok Sabha constituency), Madhya Pradesh
* Morena (Vidhan Sabha constituency), Madhya Pradesh
* Morena, San Diego, California, a neighborhood
* Mo ...
party. Out of the 8 federal deputies representing Baja California in the
Mexican Chamber of Deputies, 5 were won by Morena candidates, 2 were won by
Social Encounter Party
Social Encounter Party (, PES) was a Mexican conservative political party established on the national level in 2014 and dissolved in 2018. It was part of the coalition ''Juntos Haremos Historia'' with the National Regeneration Movement and Mexi ...
candidates, and 1 was won by a
Labor Party candidate. The next Mexican general election is scheduled for
2024
The year saw the list of ongoing armed conflicts, continuation of major armed conflicts, including the Russian invasion of Ukraine, the Myanmar civil war (2021–present), Myanmar civil war, the Sudanese civil war (2023–present), Sudane ...
.
During the
2021 Mexican legislative election
Legislative elections were held in Mexico on 6 June 2021. Voters elected 500 deputies (300 in single-member constituencies by first-past-the-post and 200 by proportional representation) to sit in the Chamber of Deputies for the 65th Congress. Th ...
, six of the eight federal deputies representing Baja California in the
Mexican Chamber of Deputies were won by
Morena
Morena or MORENA may refer to:
Places
* Morena, Madhya Pradesh, a town in central India
* Morena (Lok Sabha constituency), Madhya Pradesh
* Morena (Vidhan Sabha constituency), Madhya Pradesh
* Morena, San Diego, California, a neighborhood
* Mo ...
candidates, with the other two being won by candidates of the
Labor
Labour or labor may refer to:
* Childbirth, the delivery of a baby
* Labour (human activity), or work
** Manual labour, physical work
** Wage labour, a socioeconomic relationship between a worker and an employer
** Organized labour and the labour ...
and
Ecologist Green parties. The next legislative elections are scheduled for
2024
The year saw the list of ongoing armed conflicts, continuation of major armed conflicts, including the Russian invasion of Ukraine, the Myanmar civil war (2021–present), Myanmar civil war, the Sudanese civil war (2023–present), Sudane ...
.
Demographics

Although the state is predominantly European in ancestry, it has historically seen a
sizable East and Southeast Asian immigrant population. Mexicali has a large Chinese community, as well as many
Filipinos
Filipinos () are citizens or people identified with the country of the Philippines. Filipinos come from various Austronesian peoples, all typically speaking Filipino language, Filipino, Philippine English, English, or other Philippine language ...
who arrived to the state during the eras of Spanish Philippines and American rule (1898–1946) in much of the 19th and 20th centuries. Tijuana and Ensenada were major ports of entry for East Asians entering the U.S. ever since the first
Asian American
Asian Americans are Americans with ancestry from the continent of Asia (including naturalized Americans who are immigrants from specific regions in Asia and descendants of those immigrants).
Although this term had historically been used fo ...
s were present in California.
According to the 2020 Census, 1.71% of Baja California's population identified as Black,
Afro-Mexican
Afro-Mexicans (), also known as Black Mexicans (), are Mexicans of total or predominantly Sub-Saharan African ancestry. As a single population, Afro-Mexicans include individuals descended from both free and enslaved Africans who arrived to Mexi ...
, or of African descent.
Since 1960, large numbers of migrants from southern Mexican states have arrived to work in agriculture (especially the Mexicali Valley and nearby
Imperial Valley
The Imperial Valley ( or ''Valle Imperial'') of Southern California lies in Imperial and Riverside counties, with an urban area centered on the city of El Centro. The Valley is bordered by the Colorado River to the east and, in part, the S ...
, California, U.S.) and manufacturing. The cities of Ensenada, Tijuana, and Mexicali grew as a result of migrants, primarily those who sought U.S. citizenship. Those temporary residents awaiting their entry into the United States are called , which is derived from the Spanish word , meaning 'fleet'.
There is also a sizable immigrant community from Central and South America, and from the United States and Canada. An estimated 200,000+ American
expatriates
An expatriate (often shortened to expat) is a person who resides outside their native country.
The term often refers to a professional, skilled worker, or student from an affluent country. However, it may also refer to retirees, artists and ...
live in the state, especially in
coastal resort towns such as Ensenada, known for affordable homes purchased by retirees who continue to hold U.S. citizenship. San Felipe, Rosarito and Tijuana also have a large American population (second largest in Mexico after Mexico City), particularly for their cheaper housing and proximity to San Diego.
Some 60,000 Oaxacans live in Baja California. Some 40% of them lack proper birth certificates.
According to a
Consejo Nacional de Ciencia y Tecnología
Consejo is a village in the north of Corozal District, Belize. Consejo is located on a point of land where the bays of Corozal and Chetumal meet. Consejo is about 8 miles (12.9 km) from the district capital of Corozal Town, and across the ...
(Conacyt) investigator, a little under a million people were classified as "poor" in the state, up from 2008 when there were roughly 810,000. Exactly who these people are, whether locals, interstate or international migrants, was not explained.
Education
Baja California offers one of the best educational programs in the country, with high rankings in schooling and achievement.
The state government provides education and qualification courses to increase the workforce standards, such as school–enterprise linkage programs which help the development of a labor force according to the needs of the industry.
91.60% of the population from six to fourteen years of age attend elementary school. 61.95% of the population over fifteen years of age attends or has already graduated from high school. Public school is available in all levels from kindergarten to university.
The state has 32 universities offering 103 professional degrees. These universities have 19 research and development centers for basic and applied investigation in advanced projects related to biotechnology, physics, oceanography, computer science, digital
geothermal Geothermal is related to energy and may refer to:
* Geothermal energy, useful energy generated and stored in the Earth
* Geothermal activity, the range of natural phenomena at or near the surface, associated with release of the Earth's internal he ...
technology, astronomy, aerospace, electrical engineering and clean energy, among others. At this educational level, supply is steadily growing. Baja California has developed a need to be self-sufficient in matters of technological and scientific innovation and to be less dependent on foreign countries. Current businesses demand new production processes as well as technology for the incubation of companies. The number of graduate degrees offered, including PhD programs, is 121. The state has 53 graduate schools.
Economy

As of 2005, Baja California's economy represents 3.3% of Mexico's
gross domestic product
Gross domestic product (GDP) is a monetary measure of the total market value of all the final goods and services produced and rendered in a specific time period by a country or countries. GDP is often used to measure the economic performanc ...
, or US$21.996 billion.
Baja California's economy has a strong focus on tariff-free export oriented manufacturing (
maquiladora
A (), or (), is a factory that is largely duty (economics), duty free and tariff free. These factories take raw materials and assemble, manufacture, or process them and export the finished product. These factories and systems are present thro ...
). As of 2005, 284,255 people are employed in the manufacturing sector.
[ There are more than 900 companies operating under the federal Prosec program in Baja California.
]
Employment
In 2021, Baja California generated 57,550 new jobs, about 15.2 jobs per 1000 inhabitants, making it the 5th highest in the country and the second highest of any border state behind Nuevo León
Nuevo León, officially the Free and Sovereign State of Nuevo León, is a Administrative divisions of Mexico, state in northeastern Mexico. The state borders the Mexican states of Tamaulipas, Coahuila, Zacatecas, and San Luis Potosí, San Luis ...
(86,364 new jobs). The majority of these new jobs were generated in and around the cities of Tijuana
Tijuana is the most populous city of the Mexican state of Baja California, located on the northwestern Pacific Coast of Mexico. Tijuana is the municipal seat of the Tijuana Municipality, the hub of the Tijuana metropolitan area and the most popu ...
, Mexicali
Mexicali (; ) is the capital city of the States of Mexico, Mexican state of Baja California. The city, which is the seat of the Mexicali Municipality, has a population of 689,775, according to the 2010 census, while the Calexico–Mexicali, Cale ...
, Ensenada
Ensenada ("inlet") is a city in Ensenada Municipality, Baja California, situated on the Pacific Coast of Mexico. Located on Bahía de Todos Santos, the city had a population of 279,765 in 2018, making it the third-largest city in Baja Californ ...
, Playas de Rosarito
is a coastal city in Playas de Rosarito Municipality, Baja California, on the Pacific Coast of Mexico. As of 2010, the city had a population of 65,278. Located south of the US–Mexico border, Rosarito is a part of the greater San Diego–Tiju ...
, and Tecate
Tecate () is a city in Tecate Municipality, Baja California. It is across the Mexico–United States border, Mexico–US border from Tecate, California. As of 2019, the city had a population of 108,860 inhabitants, while the metropolitan area ha ...
. Industries that experienced the highest degree of growth in 2021 include transformative industries, transport
Transport (in British English) or transportation (in American English) is the intentional Motion, movement of humans, animals, and cargo, goods from one location to another. Mode of transport, Modes of transport include aviation, air, land tr ...
and communication
Communication is commonly defined as the transmission of information. Its precise definition is disputed and there are disagreements about whether Intention, unintentional or failed transmissions are included and whether communication not onl ...
, commerce
Commerce is the organized Complex system, system of activities, functions, procedures and institutions that directly or indirectly contribute to the smooth, unhindered large-scale exchange (distribution through Financial transaction, transactiona ...
, and construction
Construction are processes involved in delivering buildings, infrastructure, industrial facilities, and associated activities through to the end of their life. It typically starts with planning, financing, and design that continues until the a ...
.[
As of November 2021, Baja California has the highest ]employment rate
Employment-to-population ratio, also called the employment rate, is a statistical ratio that measures the proportion of a country's working age population (statistics are often given for ages 15 to 64) that is employed. This includes people that ...
of any state in northern Mexico
Northern Mexico ( ), commonly referred as , is an informal term for the northern cultural and geographical area in Mexico. Depending on the source, it contains some or all of the states of Baja California, Baja California Sur, Chihuahua (state), ...
, with a rate of 96.7%.[
]
Economic investment
As of September 2021, Baja California receives the third highest amount of foreign direct investment
A foreign direct investment (FDI) is an ownership stake in a company, made by a foreign investor, company, or government from another country. More specifically, it describes a controlling ownership an asset in one country by an entity based i ...
of any state in Mexico, constituting about 7.7% of the national total and behind only Nuevo León
Nuevo León, officially the Free and Sovereign State of Nuevo León, is a Administrative divisions of Mexico, state in northeastern Mexico. The state borders the Mexican states of Tamaulipas, Coahuila, Zacatecas, and San Luis Potosí, San Luis ...
(7.7%) and Mexico City
Mexico City is the capital city, capital and List of cities in Mexico, largest city of Mexico, as well as the List of North American cities by population, most populous city in North America. It is one of the most important cultural and finan ...
(16.5%). About 81.4% of Baja California's foreign domestic investment comes from the United States
The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
, of which 50.3% comes from the construction of natural gas
Natural gas (also fossil gas, methane gas, and gas) is a naturally occurring compound of gaseous hydrocarbons, primarily methane (95%), small amounts of higher alkanes, and traces of carbon dioxide and nitrogen, hydrogen sulfide and helium ...
pipelines and 8.2% comes car and truck manufacturing.
Real estate
The Foreign Investment Law of 1973 allows foreigners to purchase land within the borders and coasts of Mexico by way of a trust handled through a Mexican bank (Fideicomiso). This trust assures to the buyer all the rights and privileges of ownership, and it can be sold, inherited, leased, or transferred at any time. Since 1994, the Foreign Investment Law stipulates that , with the option to petition for a 50-year renewal at any time.
Any Mexican citizen buying a bank trust property has the option to either remain within the trust or opt out of it and request the title in .
Mexico's early history involved foreign invasions and the loss of vast amounts of land; in fear of history being repeated, the Mexican constitution established the concept of the "Restricted Zone". In 1973, in order to bring in more foreign tourist investment, the Bank Trust of Fideicomiso was created, thus allowing non-Mexicans to own land without any constitutional amendment necessary. Since the law went into effect, it has undergone many modifications in order to make purchasing land in Mexico a safer investment.
Highways
*Mexican Federal Highway 1
Federal Highway 1 (, Fed. 1) is a toll-free (libre) part of the federal highway corridors () of Mexico, and the highway follows the length of the Baja California Peninsula from Tijuana, Baja California, in the north to Cabo San Lucas, Ba ...
*Mexican Federal Highway 2
Federal Highway 2 (, Fed. 2) is a toll-free part of the Mexican federal highway corridors () that runs along the U.S. border. The highway is in two separate improved segments, starting in the west at Tijuana, Baja California, on the Pacific ...
*Mexican Federal Highway 3
Federal Highway 3 (, Fed. 3 ) is a tollfree part of the federal highway corridors (). One segment connects Tecate (and California State Route 188 on the US-Mexico border) to Ensenada in Baja California
Baja California, officially t ...
*Mexican Federal Highway 5
Federal Highway 5 (, Fed. 5) is a toll-free part of the federal highways corridors (), and
follows the northeast length of the state of Baja California from the US-Mexico border in Mexicali to the junction with Fed. 1. The highway is insid ...
*Mexican Federal Highway 12
Federal Highway 12 (, Fed. 12) is a toll-free part of the federal highways corridors () of Mexico. Fed. 12 is set from Mexican Federal Highway 1, Fed. 1 in central Baja California to Bahía de los Ángeles and its total length is ...
Media
Newspapers
A newspaper is a Periodical literature, periodical publication containing written News, information about current events and is often typed in black ink with a white or gray background. Newspapers can cover a wide variety of fields such as poli ...
of Baja California include ''El Centinela'', ''El informador de Baja California'', ''El Mexicano (edición Tijuana)'', ''El Mexicano Segunda Edición'', ''El Sol de Tijuana'', ''El Vigía'', ''Esto de las Californias'', ''Frontera'', ''La Crónica de Baja California'', ''La Voz de la Frontera'', and ''Semanario Zeta''.
See also
* History of the west coast of North America
The human history of the west coast of North America is believed to stretch back to the arrival of the earliest people over the Bering Strait, or alternately along the ice free coastal islands of British Columbia. This was followed by the develop ...
* Las Californias
The Californias (), occasionally known as the Three Californias or the Two Californias, are a region of North America spanning the United States and Mexico, consisting of the U.S. state of California and the Mexican states of Baja California an ...
* List of Baja California cities
* Spanish missions in present-day Baja California
Notes
References
Further reading
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External links
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Baja California Sur: Cabo Pulmo Coral Reef in Danger
Interamerican Association for Environmental Defense
Enciclopedia de los Municipios de México
Baja California leads Mexico in overall crime
{{Use dmy dates, date=November 2019
States of Mexico
States and territories established in 1952
1952 establishments in Mexico