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Santa Clara County, officially the County of Santa Clara, is the sixth-most populous county in the U.S. state of
California California is a U.S. state, state in the Western United States, located along the West Coast of the United States, Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the List of states and territori ...
, with a population of 1,936,259, as of the 2020 census. Santa Clara County and neighboring
San Benito County San Benito County (; ''San Benito'', Spanish for "St. Benedict"), officially the County of San Benito, is a county located in the Coast Range Mountains of the U.S. state of California. As of the 2020 census, the population was 64,209. The coun ...
together form the
U.S. Census Bureau The United States Census Bureau (USCB), officially the Bureau of the Census, is a principal agency of the U.S. Federal Statistical System, responsible for producing data about the American people and economy. The Census Bureau is part of the ...
's San Jose-Sunnyvale-Santa Clara metropolitan statistical area, which is part of the larger San Jose-
San Francisco San Francisco (; Spanish language, Spanish for "Francis of Assisi, Saint Francis"), officially the City and County of San Francisco, is the commercial, financial, and cultural center of Northern California. The city proper is the List of Ca ...
-
Oakland Oakland is the largest city and the county seat of Alameda County, California, United States. A major West Coast port, Oakland is the largest city in the East Bay region of the San Francisco Bay Area, the third largest city overall in the Bay A ...
combined statistical area Combined statistical area (CSA) is a United States Office of Management and Budget (OMB) term for a combination of adjacent metropolitan (MSA) and micropolitan statistical areas (µSA) across the 50 US states and the territory of Puerto Ric ...
. Santa Clara is the most populous county in the
San Francisco Bay Area The San Francisco Bay Area, often referred to as simply the Bay Area, is a populous region surrounding the San Francisco, San Pablo, and Suisun Bay estuaries in Northern California. The Bay Area is defined by the Association of Bay Area Go ...
and in
Northern California Northern California (colloquially known as NorCal) is a geographic and cultural region that generally comprises the northern portion of the U.S. state of California. Spanning the state's northernmost 48 counties, its main population centers incl ...
. The
county seat A county seat is an administrative center, seat of government, or capital city of a county or civil parish. The term is in use in Canada, China, Hungary, Romania, Taiwan, and the United States. The equivalent term shire town is used in the US st ...
and largest city is San Jose, the 10th-most populous city in the United States, California's third-most populous city and the most populous city in the San Francisco Bay Area. Home to
Silicon Valley Silicon Valley is a region in Northern California that serves as a global center for high technology and innovation. Located in the southern part of the San Francisco Bay Area, it corresponds roughly to the geographical areas San Mateo County ...
, Santa Clara County is an economic center for
high technology High technology (high tech), also known as advanced technology (advanced tech) or exotechnology, is technology that is at the cutting edge: the highest form of technology available. It can be defined as either the most complex or the newest te ...
, and in 2015 had the third-highest gross domestic product (GDP) per capita in the world (after
Zürich Zürich () is the list of cities in Switzerland, largest city in Switzerland and the capital of the canton of Zürich. It is located in north-central Switzerland, at the northwestern tip of Lake Zürich. As of January 2020, the municipality has 43 ...
,
Switzerland ). Swiss law does not designate a ''capital'' as such, but the federal parliament and government are installed in Bern, while other federal institutions, such as the federal courts, are in other cities (Bellinzona, Lausanne, Luzern, Neuchâtel ...
and
Oslo Oslo ( , , or ; sma, Oslove) is the capital and most populous city of Norway. It constitutes both a county and a municipality. The municipality of Oslo had a population of in 2022, while the city's greater urban area had a population of ...
,
Norway Norway, officially the Kingdom of Norway, is a Nordic country in Northern Europe, the mainland territory of which comprises the western and northernmost portion of the Scandinavian Peninsula. The remote Arctic island of Jan Mayen and t ...
), according to the
Brookings Institution The Brookings Institution, often stylized as simply Brookings, is an American research group founded in 1916. Located on Think Tank Row in Washington, D.C., the organization conducts research and education in the social sciences, primarily in ec ...
. Located on the southern coast of
San Francisco Bay San Francisco Bay is a large tidal estuary in the U.S. state of California, and gives its name to the San Francisco Bay Area. It is dominated by the big cities of San Francisco, San Jose, and Oakland. San Francisco Bay drains water from a ...
, the urbanized
Santa Clara Valley The Santa Clara Valley is a geologic trough in Northern California that extends 90 miles (145 km) south–southeast from San Francisco to Hollister. The longitudinal valley is bordered on the west by the Santa Cruz Mountains and on the east ...
within Santa Clara County contains most of the county's population. More recently, extensive
droughts in California The historical and ongoing droughts in California result from various complex meteorological phenomena, some of which are not fully understood by scientists. Drought is generally defined as “a deficiency of precipitation over an extended peri ...
, further complicated by drainage of the Anderson reservoir within the county for seismic repairs, have strained the county's
water security Water security is the focused goal of water policy and water management. A society with a high level of water security makes the most of water's benefits for humans and ecosystems and limits the risk of destructive impacts associated with water. T ...
. The county's concentration of wealth, primarily due to the tech industry, has made it the most affluent county on the West Coast of the United States and the most affluent outside the
Washington metropolitan area The Washington metropolitan area, also commonly referred to as the National Capital Region, is the metropolitan area centered on Washington, D.C. The metropolitan area includes all of Washington, D.C. and parts of the states of Maryland, Virgin ...
and one of the most affluent places in the United States.


Etymology

Santa Clara County is named for
Mission Santa Clara Mission (from Latin ''missio'' "the act of sending out") may refer to: Organised activities Religion *Christian mission, an organized effort to spread Christianity *Mission (LDS Church), an administrative area of The Church of Jesus Christ of ...
, which was established in 1777, and was in turn named for
Saint Clare of Assisi Clare of Assisi (born Chiara Offreduccio and sometimes spelled Clara, Clair, Claire, Sinclair; 16 July 1194 – 11 August 1253) was an Italian saint and one of the first followers of Francis of Assisi. She founded the Order of Poor Ladies, ...
.


History

Santa Clara County was one of the original
counties of California The U.S. state of California is divided into 58 counties. The state was first divided into 27 counties on February 18, 1850. These were further sub-divided to form sixteen additional counties by 1860. Another fourteen counties were formed through ...
, formed in 1850 at the time of statehood. The original inhabitants included the
Ohlone The Ohlone, formerly known as Costanoans (from Spanish meaning 'coast dweller'), are a Native American people of the Northern California coast. When Spanish explorers and missionaries arrived in the late 18th century, the Ohlone inhabited the ...
, residing on Coyote Creek and Calaveras Creek. Part of the county's territory was given to
Alameda County Alameda County ( ) is a List of counties in California, county located in the U.S. state of California. As of the 2020 United States Census, 2020 census, the population was 1,682,353, making it the 7th-most populous county in the state and List ...
in 1853. In 1882, Santa Clara County tried to levy taxes upon property of the
Southern Pacific Railroad The Southern Pacific (or Espee from the railroad initials- SP) was an American Class I railroad network that existed from 1865 to 1996 and operated largely in the Western United States. The system was operated by various companies under the ...
within county boundaries. The result was the
U.S. Supreme Court The Supreme Court of the United States (SCOTUS) is the highest court in the federal judiciary of the United States. It has ultimate appellate jurisdiction over all U.S. federal court cases, and over state court cases that involve a point o ...
case of ''
Santa Clara County v. Southern Pacific Railroad ''Santa Clara County v. Southern Pacific Railroad Company'', 118 U.S. 394 (1886), is a corporate law case of the United States Supreme Court concerning taxation of railroad properties. The case is most notable for a headnote stating that the Equa ...
'', 118 U.S. 394 (1886), in which the court extended due-process rights to artificial legal entities. In the early 20th century, the area was promoted as the "Valley of the Heart's Delight" due to its natural beauty, including a significant number of
orchard An orchard is an intentional plantation of trees or shrubs that is maintained for food production. Orchards comprise fruit- or nut-producing trees which are generally grown for commercial production. Orchards are also sometimes a feature of larg ...
s. The first major technology company to be based in the area was
Hewlett-Packard The Hewlett-Packard Company, commonly shortened to Hewlett-Packard ( ) or HP, was an American multinational information technology company headquartered in Palo Alto, California. HP developed and provided a wide variety of hardware components ...
, founded in a garage in Palo Alto in 1939. IBM selected San Jose as its West Coast headquarters in 1943.
Varian Associates Varian Associates was one of the first high-tech companies in Silicon Valley. It was founded in 1948 by Russell H. and Sigurd F. Varian, William Webster Hansen, and Edward Ginzton to sell the klystron, the first vacuum tube which could amplify ...
,
Fairchild Semiconductor Fairchild Semiconductor International, Inc. was an American semiconductor company based in San Jose, California. Founded in 1957 as a division of Fairchild Camera and Instrument, it became a pioneer in the manufacturing of transistors and of int ...
, and other early innovators were in the county by the late 1940s and 1950s. The U.S. Navy had a large presence in the area and began giving large contracts to Silicon Valley electronics companies. The term "
Silicon Valley Silicon Valley is a region in Northern California that serves as a global center for high technology and innovation. Located in the southern part of the San Francisco Bay Area, it corresponds roughly to the geographical areas San Mateo County ...
" was coined in 1971. The trend accelerated in the 1980s and 1990s, and agriculture has since been nearly eliminated from the northern part of the county. Today, Santa Clara County is the headquarters for about 6500 high-technology companies, including many of the largest ones in the world, among them hardware manufacturers
AMD Advanced Micro Devices, Inc. (AMD) is an American multinational semiconductor company based in Santa Clara, California, that develops computer processors and related technologies for business and consumer markets. While it initially manufactur ...
,
Nvidia Nvidia CorporationOfficially written as NVIDIA and stylized in its logo as VIDIA with the lowercase "n" the same height as the uppercase "VIDIA"; formerly stylized as VIDIA with a large italicized lowercase "n" on products from the mid 1990s to ...
,
Cisco Systems Cisco Systems, Inc., commonly known as Cisco, is an American-based multinational corporation, multinational digital communications technology conglomerate (company), conglomerate corporation headquartered in San Jose, California. Cisco develo ...
, and
Intel Intel Corporation is an American multinational corporation and technology company headquartered in Santa Clara, California. It is the world's largest semiconductor chip manufacturer by revenue, and is one of the developers of the x86 seri ...
, computer and consumer electronics companies
Apple Inc. Apple Inc. is an American multinational technology company headquartered in Cupertino, California, United States. Apple is the largest technology company by revenue (totaling in 2021) and, as of June 2022, is the world's biggest company ...
and Hewlett-Packard, and internet companies
eBay eBay Inc. ( ) is an American multinational e-commerce company based in San Jose, California, that facilitates consumer-to-consumer and business-to-consumer sales through its website. eBay was founded by Pierre Omidyar in 1995 and became a ...
,
Google Google LLC () is an American multinational technology company focusing on search engine technology, online advertising, cloud computing, computer software, quantum computing, e-commerce, artificial intelligence, and consumer electronics. ...
, and
Yahoo! Yahoo! (, styled yahoo''!'' in its logo) is an American web services provider. It is headquartered in Sunnyvale, California and operated by the namesake company Yahoo Inc., which is 90% owned by investment funds managed by Apollo Global Man ...
. Most of what is considered to be Silicon Valley is within the county, although some adjoining tech regions in San Mateo (e.g.,
Facebook Facebook is an online social media and social networking service owned by American company Meta Platforms. Founded in 2004 by Mark Zuckerberg with fellow Harvard College students and roommates Eduardo Saverin, Andrew McCollum, Dustin M ...
),
Alameda An alameda is a Avenue (landscape), street or path lined with trees () and may refer to: Places Canada *Alameda, Saskatchewan, town in Saskatchewan **Grant Devine Dam, formerly ''Alameda Dam'', a dam and reservoir in southern Saskatchewan Chile ...
, and Santa Cruz counties are also considered part of Silicon Valley.


Geography

According to the
U.S. Census Bureau The United States Census Bureau (USCB), officially the Bureau of the Census, is a principal agency of the U.S. Federal Statistical System, responsible for producing data about the American people and economy. The Census Bureau is part of the ...
, the county has a total area of , of which (1.1%) are covered by water. Counties which border with Santa Clara County are, clockwise,
Alameda County Alameda County ( ) is a List of counties in California, county located in the U.S. state of California. As of the 2020 United States Census, 2020 census, the population was 1,682,353, making it the 7th-most populous county in the state and List ...
, San Joaquin (within a few hundred feet at Mount Boardman), Stanislaus,
Merced Merced (; Spanish for "Mercy") is a city in, and the county seat of, Merced County, California, United States, in the San Joaquin Valley. As of the 2020 Census, the city had a population of 86,333, up from 78,958 in 2010. Incorporated on April 1 ...
, San Benito, Santa Cruz, and
San Mateo County San Mateo County ( ), officially the County of San Mateo, is a county located in the U.S. state of California. As of the 2020 census, the population was 764,442. Redwood City is the county seat, and the third most populated city following Daly ...
. Santa Clara County formerly shared borders with Contra Costa,
San Francisco San Francisco (; Spanish language, Spanish for "Francis of Assisi, Saint Francis"), officially the City and County of San Francisco, is the commercial, financial, and cultural center of Northern California. The city proper is the List of Ca ...
, Mariposa,
Monterey Monterey (; es, Monterrey; Ohlone: ) is a city located in Monterey County on the southern edge of Monterey Bay on the U.S. state of California's Central Coast. Founded on June 3, 1770, it functioned as the capital of Alta California under both ...
, and Tuolumne counties until 1853, 1856, 1874, and 1854 respectively (Monterey County currently comes within a few miles of Santa Clara). The
San Andreas Fault The San Andreas Fault is a continental transform fault that extends roughly through California. It forms the tectonics, tectonic boundary between the Pacific Plate and the North American Plate, and its motion is Fault (geology)#Strike-slip fau ...
runs along the
Santa Cruz Mountains The Santa Cruz Mountains, part of the Pacific Coast Ranges, are a mountain range in central and Northern California, United States. They form a ridge down the San Francisco Peninsula, south of San Francisco. They separate the Pacific Ocean from ...
in the south and west of the county.


National protected area

*
Don Edwards San Francisco Bay National Wildlife Refuge Don Edwards San Francisco Bay National Wildlife Refuge (DESFBNWR) is a United States National Wildlife Refuge located in the southern part of San Francisco Bay, California. The Refuge headquarters and visitor center is located in the Baylands dis ...
(part)


Fauna

Both
tule elk The tule elk (''Cervus canadensis nannodes'') is a subspecies of elk found only in California, ranging from the grasslands and marshlands of the Central Valley to the grassy hills on the coast. The subspecies name derives from the tule (), a s ...
(''Cervus canadensis nannodes'') and
pronghorn The pronghorn (, ) (''Antilocapra americana'') is a species of artiodactyl (even-toed, hoofed) mammal indigenous to interior western and central North America. Though not an antelope, it is known colloquially in North America as the American a ...
(''Antilocapra americana'') were historically
native Native may refer to: People * Jus soli, citizenship by right of birth * Indigenous peoples, peoples with a set of specific rights based on their historical ties to a particular territory ** Native Americans (disambiguation) In arts and entert ...
to Santa Clara County. In June 1776, Lieutenant Commander Don
José Joaquín Moraga José Joaquín de la Santísima Trinidad Moraga (22 August 1745 – 13 July 1785), usually simply known as José Joaquín Moraga, was a Spanish colonial expeditionary and soldier who founded San Jose, California, in 1777. Life José Joaquín Mora ...
led a group of soldiers and colonists from the Presidio of Monterey to establish
Mission San Francisco de Asis Mission (from Latin ''missio'' "the act of sending out") may refer to: Organised activities Religion *Christian mission, an organized effort to spread Christianity * Mission (LDS Church), an administrative area of The Church of Jesus Christ of ...
and encountered both tule elk and pronghorn, and clearly distinguished these two species from deer. The deer in California being
California mule deer The California mule deer (''Odocoileus hemionus californicus'') is a subspecies of mule deer whose range covers much of the state of California. Anatomy One of the principal means of distinguishing the closely related black-tailed deer and whi ...
(''Odocoileus hemionus''). Regarding elk, Moraga wrote: “In the great plain called San Bernardino (the
Santa Clara Valley The Santa Clara Valley is a geologic trough in Northern California that extends 90 miles (145 km) south–southeast from San Francisco to Hollister. The longitudinal valley is bordered on the west by the Santa Cruz Mountains and on the east ...
which stretches from south San Jose to Gilroy), while the expedition was strung out at length, we descried in the distance a herd of large animals that looked like cattle, but we could not imagine where they belonged or from whence they had come...with horns similar in shape to those of the deer, but so large that they measured sixteen palms from tip to tip.” Upon measurement, Morago reported the elk horns as four varas 1 feetacross… “These animals lkare called ''ciervos'' in order to differentiate them from the ordinary Spanish variety of deer, here called ''venados'', which also exist in abundance and of large size in the vicinity.” Regarding pronghorn, Moraga reported: “In the said plains of San Bernardino (Santa Clara Valley)…there is another species of deer about the size of three-year-old sheep. They are similar in appearance to the deer, except they have short horns and also short legs like the sheep. They live in the plains where they go in herds of 100, 200, or more. They run all together over the plains so fast that they seem to fly…These animals are called ''berrendos'' and there are many of them also in the southern Missions wherever the country is level.”
Herbert Eugene Bolton Herbert Eugene Bolton (July 20, 1870 – January 30, 1953) was an American historian who pioneered the study of the Spanish-American borderlands and was a prominent authority on Spanish American history. He originated what became known as the ''Bo ...
also wrote of elk reports from another Spanish expedition, from the
De Anza Expedition Juan Bautista de Anza Bezerra Nieto (July 6 or 7, 1736 – December 19, 1788) was an expeditionary leader, military officer, and politician primarily in California and New Mexico under the Spanish Empire. He is credited as one of the founding fa ...
on March 23, 1776: " In Gilroy Valley (Santa Clara Valley) Moraga 's larder was replenished by three elks which the men killed without leaving the road." General John Bidwell, of the 1841 Bartleson-Bidwell Party wrote: "In some of the fertile valleys, such as Napa and Santa Clara, there were elk literally by the thousand.” In 1978,
California Department of Fish and Game The California Department of Fish and Wildlife (CDFW), formerly known as the California Department of Fish and Game (CDFG), is a state agency under the California Natural Resources Agency. The Department of Fish and Wildlife manages and protect ...
warden Henry Coletto urged the department to choose the Mount Hamilton area as one of California's relocation sites under a new statewide effort to restore tule elk. While other ranchers refused, tech pioneers
Bill Hewlett William Redington Hewlett ( ; May 20, 1913 – January 12, 2001) was an American engineer and the co-founder, with David Packard, of the Hewlett-Packard Company (HP). Early life and education Hewlett was born in Ann Arbor, Michigan, where his ...
and
David Packard David Packard ( ; September 7, 1912 – March 26, 1996) was an American electrical engineer and co-founder, with Bill Hewlett, of Hewlett-Packard (1939), serving as president (1947–64), CEO (1964–68), and chairman of the board (1964–6 ...
allowed Coletto and state biologists to translocate the initial 32 tule elk from the
Owens Valley Owens Valley (Numic Numic is a branch of the Uto-Aztecan language family. It includes seven languages spoken by Native American peoples traditionally living in the Great Basin, Colorado River basin, Snake River basin, and southern Great Pl ...
in the eastern Sierra onto the San Felipe Ranch, which the families jointly own, in the hills east of
Morgan Hill Morgan Hill is a city in Santa Clara County, California, at the southern tip of Silicon Valley, in the San Francisco Bay Area. Morgan Hill is an affluent residential community, the seat of several high-tech companies, and a dining, entertainmen ...
. From the three original 1978–1981 translocations (totaling 65 animals) to the Mount Hamilton region of the
Diablo Range The Diablo Range is a mountain range in the California Coast Ranges subdivision of the Pacific Coast Ranges in northern California, United States. It stretches from the eastern San Francisco Bay area at its northern end to the Salinas Valley are ...
, there are multiple herds in different locations including the Isabel Valley,
San Antonio Valley The community of San Antonio Valley, also called San Antonio or San Antone, is located along the Diablo Range in eastern Santa Clara County, California. The locale is bordered by Alameda County to the north and Stanislaus County to the east. ...
, Livermore area, San Felipe Ranch, Metcalf Canyon, Coyote Ridge, Anderson Lake, and surrounding areas such as the Sunol and Cottonwood Creek (near
San Luis Reservoir The San Luis Reservoir is an artificial lake on San Luis Creek in the eastern slopes of the Diablo Range of Merced County, California, approximately west of Los Banos on State Route 152, which crosses Pacheco Pass and runs along its north ...
in western
Merced County, California Merced County ( ), is a county located in the northern San Joaquin Valley section of the Central Valley, in the U.S. state of California. As of the 2020 census, the population was 281,202. The county seat is Merced. The county is named after ...
) herds. , an estimated 400 tule elk roam in northeastern Santa Clara County and southeastern
Alameda County Alameda County ( ) is a List of counties in California, county located in the U.S. state of California. As of the 2020 United States Census, 2020 census, the population was 1,682,353, making it the 7th-most populous county in the state and List ...
. In March 2014 CDFW translocated nine bull elk from the San Luis National Wildlife Refuge to add genetic diversity to the San Antonio Valley Ecological Reserve herd in
San Antonio Valley The community of San Antonio Valley, also called San Antonio or San Antone, is located along the Diablo Range in eastern Santa Clara County, California. The locale is bordered by Alameda County to the north and Stanislaus County to the east. ...
in extreme eastern Santa Clara County. As of 2017 there were four herds in the Coyote Ridge area, often visible from U. S. Highway 101, according to Craige Edgerton, recently retired executive director of the Silicon Valley Land Conservancy and local naturalist Michael Hundt. In 2019, a fifth herd of tule elk was documented by local naturalist Roger Castillo, likely having split from the Coyote Ridge herd and established itself in Silver Creek Valley around the closed Ranch Golf Club. The elk herds in eastern Santa Clara County are blocked from dispersal to the west by U.S. Highway 101, with environmentalists advocating re-purposing the Metcalf Road bridge at the Coyote Gap into a wildlife overcrossing. This would enable elk to recolonize rural southwestern Santa Clara County, as well as Santa Cruz and San Mateo Counties. In 1990, the
California Department of Fish and Game The California Department of Fish and Wildlife (CDFW), formerly known as the California Department of Fish and Game (CDFG), is a state agency under the California Natural Resources Agency. The Department of Fish and Wildlife manages and protect ...
's Henry Coletto translocated excess pronghorn from
Modoc County Modoc County () is a county in the far northeast corner of the U.S. state of California. Its population is 8,700 as of the 2020 census, down from 9,686 from the 2010 census. This makes it California's third-least populous county. The county seat ...
to six locations in California, including 51 animals to the San Felipe Ranch in Santa Clara County, where the swift-footed ungulates had not lived for generations. The animals left the San Felipe Ranch for the
Isabel Isabel is a female name of Spanish origin. Isabelle is a name that is similar, but it is of French origin. It originates as the medieval Spanish form of '' Elisabeth'' (ultimately Hebrew ''Elisheva''), Arising in the 12th century, it became popul ...
and
San Antonio ("Cradle of Freedom") , image_map = , mapsize = 220px , map_caption = Interactive map of San Antonio , subdivision_type = Country , subdivision_name = United States , subdivision_type1= U.S. state, State , subdivision_name1 = Texas , s ...
Valleys, as well as an area near
Lake Del Valle Lake Del Valle is a storage reservoir located southeast of Livermore, in Alameda County, California. It is within Del Valle Regional Park. Lake description It is on Arroyo Valle (Spanish for "creek of the valley") in the Diablo Range. The lake ...
in
Alameda County Alameda County ( ) is a List of counties in California, county located in the U.S. state of California. As of the 2020 United States Census, 2020 census, the population was 1,682,353, making it the 7th-most populous county in the state and List ...
may now be extirpated by poaching, highway vehicle collisions, and insufficient numbers to defend pronghorn fawns against coyote predation. As of 2012, the Isabel Valley Ranch herd had dwindled to 3 animals, and the Lake del Valle herd to 13. Currently, iNaturalist.org has zero observer records of pronghorn in Santa Clara County.
The Nature Conservancy The Nature Conservancy (TNC) is a global environmental organization headquartered in Arlington, Virginia. it works via affiliates or branches in 79 countries and territories, as well as across every state in the US. Founded in 1951, The Natu ...
"Mount Hamilton Project" has acquired or put under conservation easement of land towards its goal for habitat conservation within a area encompassing much of eastern Santa Clara County as well as portions of southern Alameda County, western
Merced Merced (; Spanish for "Mercy") is a city in, and the county seat of, Merced County, California, United States, in the San Joaquin Valley. As of the 2020 Census, the city had a population of 86,333, up from 78,958 in 2010. Incorporated on April 1 ...
and Stanislaus Counties, and northern
San Benito County San Benito County (; ''San Benito'', Spanish for "St. Benedict"), officially the County of San Benito, is a county located in the Coast Range Mountains of the U.S. state of California. As of the 2020 census, the population was 64,209. The coun ...
. Acquisitions to date include the
Rancho Cañada de Pala Rancho Cañada de Pala was a Mexican land grant in present-day Santa Clara County, California given in 1839 by Governor Juan B. Alvarado to José de Jesús Bernal. The origin of the name Cañada de Pala is the subject of debate. The word "pala" t ...
, straddling the Alameda Creek and Coyote Creek watersheds for California tiger salamander habitat; a conservation easement on the 3,259-acre
Blue Oak Ranch Reserve The Blue Oak Ranch Reserve, a unit of the University of California Natural Reserve System, is an ecological reserve and biological field station in Santa Clara County, California. It is located on in the Diablo Range, northwest of Mount Hamilt ...
, which abuts the north side of
Joseph D. Grant County Park Joseph D. Grant County Park is the largest county park in Santa Clara County, California. Also known as Grant Ranch Park, this site is situated in the Diablo Range foothills of the eastern Santa Clara Valley. The park is one of 28 owned by Santa ...
; a conservation easement on the 28,359-acre San Felipe Ranch, connecting Joseph D. Grant County Park with Henry W. Coe State Park; the 2,899-acre South Valley Ranch which protects a tule elk herd in the San Antonio Valley, and other properties. As of 1980, Santa Clara County had the highest number of
Superfund Sites Superfund sites are polluted locations in the United States requiring a long-term response to clean up hazardous material contaminations. They were designated under the Comprehensive Environmental Response, Compensation, and Liability Act (CERC ...
of any county in the United States, accounting for 25 polluted locations requiring a long-term response to clean up hazardous material contaminations. , Santa Clara County has 23 active Superfund Sites, still more than any other county in the United States. The vast majority of these Superfund sites were caused by firms associated with the high tech sector in
Silicon Valley Silicon Valley is a region in Northern California that serves as a global center for high technology and innovation. Located in the southern part of the San Francisco Bay Area, it corresponds roughly to the geographical areas San Mateo County ...
.


Demographics


2020 census

''Note: the US Census treats Hispanic/Latino as an ethnic category. This table excludes Latinos from the racial categories and assigns them to a separate category. Hispanics/Latinos can be of any race.''


2018

Census demographics data released in 2019 show
Asian Americans Asian Americans are Americans of Asian ancestry (including naturalized Americans who are immigrants from specific regions in Asia and descendants of such immigrants). Although this term had historically been used for all the indigenous people ...
have had the plurality of Santa Clara's population since 2014.


2011-2014

As of 2013, Santa Clara County has the highest median household income of any county in California at $84,741.


Places by population, race, and income


2010 census

The
2010 United States census The United States census of 2010 was the twenty-third United States national census. National Census Day, the reference day used for the census, was April 1, 2010. The census was taken via mail-in citizen self-reporting, with enumerators servin ...
reported that Santa Clara County had a population of 1,781,642. The
racial makeup A race is a categorization of humans based on shared physical or social qualities into groups generally viewed as distinct within a given society. The term came into common usage during the 1500s, when it was used to refer to groups of variou ...
of Santa Clara County was 836,616 (47.0%) White, 46,428 (2.6%) African American, 12,960 (0.7%) Native American, 7,060 (0.4%) Pacific Islander, 570,524 (32.0%) Asian, 220,806 (12.4%) from other races, and 87,248 (4.9%) from two or more races. Hispanics or Latinos of any race were 479,210 persons (26.9% of the population). Demographic profile The largest ancestry groups were: *22.5%
Mexican 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 ...
*8.6% Chinese Americans, Chinese *8.2% German Americans, German *7.1% Vietnamese Americans, Vietnamese *6.6% Indian Americans, Indian *6.0% English Americans, English *6.0% Irish Americans, Irish *4.9% Filipino Americans, Filipino *4.6% Italian Americans, Italian *2.0% French Americans, French *1.6% Portuguese Americans, Portuguese *1.6% Korean Americans, Korean *1.4% American ancestry, American *1.4% Japanese Americans, Japanese *1.4% Scottish Americans, Scottish *1.2% Polish Americans, Polish *1.2% Swedish Americans, Swedish *1.1% Russian Americans, Russian *1.1% Norwegian Americans, Norwegian *1.0% Dutch Americans, Dutch


2000

As of the census of 2000, 1,682,585 people, 565,863 households, and 395,538 families were residing in the county. The population density was 503/km2 (1,304/mi2). The 579,329 housing units had an average density of 173/km2 (449/sq mi). The ethnic makeup of the county was 53.8% White, 2.8% African American, 0.7% Native American, 25.6% Asian, 0.3% Pacific Islander, 12.1% from other races, and 4.7% from two or more races. About 24.0% of the population were Hispanic or Latino of any race. Of the 565,863 households, 34.9% had children under 18 living with them, 54.9% were married couples living together, 10.0% had a female householder with no husband present, and 30.1% were not families. About 21.4% of all households were made up of individuals, and 5.9% had someone living alone who was 65 or older. The average household size was 2.92, and the average family size was 3.41. In the county, the age distribution was 24.7% under 18, 9.3% from 18 to 24, 35.4% from 25 to 44, 21.0% from 45 to 64, and 9.5% who were 65 or older. The median age was 34 years. For every 100 females,there were 102.80 males. For every 100 females 18 and over, there were 101.90 males. The median income for a household in the county was $74,335, and for a family was $81,717. Males had a median income of $56,240 versus $40,574 for females. The per capita income for the county was $32,795. About 4.9% of families and 7.5% of the population were below the poverty line, including 8.4% of those under age 18 and 6.4% of those age 65 or over.


2020 religion census

Santa Clara County is among the most religiously diverse counties in the US. A 2020 census by the Public Religion Research Institute (unconnected to the official US census) calculates a religious diversity score of 0.876 for Santa Clara County, where 1 represents complete diversity (each religious group of equal size) and 0 a total lack of diversity. Only four counties in the US have higher diversity scores than Santa Clara County.


Government

Santa Clara County has five elected Santa Clara County Board of Supervisors, supervisors, elected within their districts. The county is one among three counties in California (with Napa and Madera) to establish a separate department, the Santa Clara County Department of Corrections, to deal with corrections pursuant to California Government Code §23013. The county operates the Santa Clara County Health System of medical centers and clinics. The county also pays the $340,000 salary and benefits of the California Department of Social Services, California state Department of Social Services director, which is reimbursed by the state, skirting the $165,000 state law cap for the position. In the United States House of Representatives, Santa Clara County is split among 4 congressional districts: * , * , * , and * . In the California State Senate, the county is split among 4 legislative districts: * , * , * , and * . In the California State Assembly, the county is split among 6 legislative districts: * , * , * , * , * , and * . Voters in the county also elect a number of other officials to county-wide positions, including the Santa Clara County District Attorney, the Santa Clara County Sheriff, and a large number of criminal and civil judges that serve in courts throughout the county.


Politics

Historically, Santa Clara County was a Republican Party (United States), Republican stronghold in presidential elections. From 1872 through 1984, the only Democrats to carry Santa Clara County were Franklin Roosevelt, Lyndon Johnson, and Hubert Humphrey. However, 1988 would begin to mark a significant shift in the county's political leanings, starting with Michael Dukakis' narrow win and culminating in Bill Clinton's substantial 20-point victory in 1992. Since then, the Democratic presidential candidate has won Santa Clara County by large margins, and also remains solidly blue in United States Congress, congressional elections, as all politicians representing the county at the state and federal level are known to be Democrats . The last Republican to win a majority in the county was Ronald Reagan in United States presidential election in California, 1984, 1984. While Republicans remained competitive at the state and local level throughout the 1990s, there are currently no elected Republicans representing the county above the local level. According to the Secretary of State of California, California Secretary of State, as of February 10, 2019, Santa Clara County has 895,965 registered voters. Of those, 405,470 (45.3%) are registered California Democratic Party, Democrats, 151,213 (16.9%) are registered California Republican Party, Republicans, and 308,769 (35.4%) have Decline to State, declined to state a political party. As of November 2012, all of the cities, towns, and the unincorporated areas of Santa Clara County have more registered Democrats than Republicans. In the United States presidential election in California, 2008, 2008 US Presidential Election, Democratic nominee Barack Obama carried every city and town in the county, as well as the unincorporated areas. Following the passage of California Proposition 8 (2008), Proposition 8, Santa Clara County joined
San Francisco San Francisco (; Spanish language, Spanish for "Francis of Assisi, Saint Francis"), officially the City and County of San Francisco, is the commercial, financial, and cultural center of Northern California. The city proper is the List of Ca ...
and Los Angeles in a Lawsuits to overturn Proposition 8, lawsuit, becoming, along with San Francisco and Los Angeles, the first governmental entities in the world to sue for same-sex marriage.


Voter registration


Cities by population and voter registration


Crime

The following table includes the number of incidents reported in 2009 and the rate per 1,000 persons for each type of offense. Law Enforcement in Santa Clara County is handled by the Santa Clara County Sheriff's Office and local police departments.


Cities by population and crime rates


Economy

The county's economy is heavily services-based. Technology, both hardware and software, dominates the service sector by value, but like any other county, Santa Clara has its share of retail and office support workers. The San Jose/Sunnyvale/Santa Clara metropolitan region, comprising Santa Clara County and San Benito County, was ranked as the highest performing metropolitan area in the US in 2012, ahead of Austin, Texas and Raleigh, North Carolina, according to the Milken Institute. The GDP of the metro area reached $176.7 billion in 2011, or $94,587 per capita, roughly on par with Qatar in both total GDP and per capita (nominal). GDP grew a strong 7.7% in 2011, and in contrast with most of California, GDP and per capita GDP (nominal) is well above 2007 (financial crisis) levels. Despite relative wealth vis a vis other regions nationally, a large underclass exists whose income is roughly equivalent to that elsewhere in the country, despite extreme land prices. The surge in metro GDP is highly correlated with home prices, which for average single-family homes passed $1 million ($1,017,528) in August 2013. As of the fourth quarter of 2021, the median value of homes in Santa Clara County was $1,253,400, an increase of 11.9% from the prior year, and ranking fourth in the US for highest median home value.


Education


K-12 schools

School districts include: ; Unified * Gilroy Unified School District * Milpitas Unified School District * Morgan Hill Unified School District * Palo Alto Unified School District * Patterson Joint Unified School District * San Jose Unified School District * Santa Clara Unified School District ; Secondary * Campbell Union High School District * East Side Union High School District * Fremont Union High School District * Los Gatos-Saratoga Joint Union High School District * Mountain View–Los Altos Union High School District ; Elementary * Alum Rock Union Elementary School District * Berryessa Union Elementary School District * Cambrian Elementary School District * Campbell Union Elementary School District * Cupertino Union Elementary School District * Evergreen Elementary School District * Franklin-McKinley Elementary School District * Lakeside Joint Elementary School District * Loma Prieta Joint Union Elementary School District * Los Altos Elementary School District * Los Gatos Union Elementary School District * Luther Burbank Elementary School District * Moreland School District * Mountain View Whisman Elementary School District * Mount Pleasant Elementary School District * Oak Grove Elementary School District * Orchard Elementary School District * Saratoga Union Elementary School District * Sunnyvale Elementary School District * Union School District, San Jose, Union School District


Libraries

Santa Clara County Library is a public library system serving the communities and cities of Campbell, Cupertino, Gilroy, Los Altos, Los Altos Hills, Milpitas, Monte Sereno, Morgan Hill, Saratoga, and all unincorporated areas of the county. Other cities run their own library systems.


Transportation


Air

The county's main airport is San Jose International Airport, Norman Y. Mineta San José International Airport (SJC). It is a U.S. Customs and Border Protection port of entry and as of 2019 has five international routes (two to Canada, one to England, one to Japan, seven to Mexico, and one to China) but the airport's busiest routes are all to cities in the western United States. San Francisco International Airport (SFO) is also often used for commercial services by residents of Santa Clara County. Moffett Federal Airfield (NUQ), a former U.S. Naval Air Station, is used by the Air National Guard, NASA, Lockheed Martin,
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, and by the San Jose Police Department (California), San Jose Police and Santa Clara County Sheriff's Office, Santa Clara County Sheriff's Department as an air operations base. There are also smaller general aviation airports in Palo Alto Airport of Santa Clara County, Palo Alto (PAO), Reid-Hillview Airport, San Jose (Reid-Hillview) (RHV), and San Martin Airport, San Martin(E16)


Rail

Santa Clara County is served by Caltrain commuter rail from Gilroy through Diridon Station, San Jose and Silicon Valley north to Millbrae Intermodal Terminal, San Francisco Airport and San Francisco 4th and King Street Station, San Francisco. The Santa Clara Valley Transportation Authority operates the VTA light rail system, which primarily serves San Jose, with one line continuing as far north as Mountain View, California, Mountain View. Santa Clara Transit Center, Santa Clara and San Jose Diridon station, San Jose are also served by the Altamont Corridor Express commuter rail line which provides services to Robert J. Cabral Station, Stockton, and Amtrak which provides service to Sacramento Station, Sacramento and Oakland – Jack London Square (Amtrak station), Oakland. The Amtrak Coast Starlight train between Seattle and Los Angeles also stops in San Jose. Bay Area Rapid Transit, BART currently services Milpitas station, Milpitas and Berryessa/North San José station, North San Jose, with plans to Silicon Valley BART extension, extend to downtown San Jose and Santa Clara.


Road


Buses

Santa Clara County has consolidated its transportation services into the Santa Clara Valley Transportation Authority, which operates a bus system.


Bicycle network

The Santa Clara Valley Transportation Authority is establishing a bicycle network throughout the county. Santa Clara County Bicycle network is part of the
San Francisco Bay Area The San Francisco Bay Area, often referred to as simply the Bay Area, is a populous region surrounding the San Francisco, San Pablo, and Suisun Bay estuaries in Northern California. The Bay Area is defined by the Association of Bay Area Go ...
Bicycle transportation planning in the San Francisco Bay Area, Regional Bikeway Network.
Bikeways Map (Effective April 2011)

Regional Bicycle Plan for the San Francisco Bay Area 2009 Update


Freeways and expressways

The county has an extensive Controlled-access highway, freeway system and a separate expressway system (though it's not as extensive as those in Southern California freeways, Southern California). Limited-access road, Expressways in California are distinct from freeways; although access to adjoining properties is eliminated, at-grade intersections are allowed. However, unlike expressways virtually everywhere else in California, the Santa Clara County expressways were built, signed, and maintained as county roads; they are not maintained by Caltrans, although they are patrolled by the California Highway Patrol. There is also a large street network dominated by four- and six-lane arterials. Some of the newer boulevards (primarily in the West Valley) are divided with landscaped medians.


=Major highways

= * Interstate 280 (California), Interstate 280 * Interstate 680 (California), Interstate 680 * Interstate 880 (California), Interstate 880 * U.S. Route 101 in California, U.S. Route 101 * California State Route 9, State Route 9 * California State Route 17, State Route 17 * California State Route 25, State Route 25 * California State Route 35, State Route 35 * California State Route 82, State Route 82 * California State Route 85, State Route 85 * California State Route 87, State Route 87 * California State Route 130, State Route 130 * California State Route 152, State Route 152 * California State Route 156, State Route 156 * California State Route 237, State Route 237


=County routes

= * Santa Clara County expressway system * County Route G2 (California), County Route G2—Lawrence Expressway * County Route G3 (California), County Route G3—Page Mill Road/Oregon Expressway * County Route G4 (California), County Route G4—San Tomas Expressway/Montague Expressway * County Route G5 (California), County Route G5—Foothill Expressway * County Route G6 (California), County Route G6—Central Expressway * County Route G7 (California), County Route G7—Bloomfield Avenue * County Route G8 (California), County Route G8—Almaden Expressway * County Route G9 (California), County Route G9—Leavesly Road/Ferguson Road * County Route G10 (California), County Route G10—Blossom Hill Road * County Route G21 (California), County Route G21—Capitol Expressway


=Other roads

= * The Alameda (San José), The Alameda


Sea

The county has no commercial seaports, although small boats can access San Francisco Bay from several points. Like many other Bay Area counties, it is dependent upon the Port of Oakland for transport of ocean cargo.


Jails

Santa Clara County Department of Correction is administered by the county's sheriff's office and supervises the following facilities: * Santa Clara County Main Jail ** Main Jail South (up to 674 men) ** Main Jail North (up to 919 men) * Elmwood Correctional Facility (up to 600 women, 2,500 men) * North County Jail (day use only for Palo Alto courthouse) * Juvenile Detention ** Santa Clara County Juvenile Hall (up to 390 boys and girls) ** William F. James Boys Ranch (up to 96 teenage boys)


Parks

Santa Clara County has an extensive park system, much of it founded in the major park expansion of the late 1970s. Parks within the county include: * Almaden Quicksilver County Park * Grant Ranch Park * Henry W. Coe State Park * Sanborn Park * Vasona Park Open space preserves include: * El Sereno Open Space Preserve Santa Clara County also contains Ulistac Natural Area, a volunteer maintained natural open space. Foreign and invasive species are removed when possible as native plants are introduced. Migratory birds and butterflies often use this area.


Climate


Sister counties

To promote friendship and understanding and to build bridges with countries of origin for various ethnic populations in the county, the County of Santa Clara has created a Sister County Commission to coordinate the program. As of 3028, there are three sister counties: * Province of Florence, Italy * Moscow Area, Russia * Hsinchu County, Taiwan (Republic of China)


Communities


Cities

There are 15 incorporated places in Santa Clara County: * Campbell, California, Campbell * Cupertino, California, Cupertino * Gilroy * Los Altos, California, Los Altos * Milpitas, California, Milpitas * Monte Sereno, California, Monte Sereno *
Morgan Hill Morgan Hill is a city in Santa Clara County, California, at the southern tip of Silicon Valley, in the San Francisco Bay Area. Morgan Hill is an affluent residential community, the seat of several high-tech companies, and a dining, entertainmen ...
* Mountain View, California, Mountain View * Palo Alto, California, Palo Alto * San Jose (county seat) * Santa Clara, California, Santa Clara * Saratoga, California, Saratoga * Sunnyvale, California, Sunnyvale


Towns

* Los Altos Hills, California, Los Altos Hills * Los Gatos, California, Los Gatos


Census-designated places

* Alum Rock, California, Alum Rock * Burbank, Santa Clara County, California, Burbank * Cambrian Park, California, Cambrian Park * East Foothills, California, East Foothills * Fruitdale, California, Fruitdale * Lexington Hills, California, Lexington Hills * Loyola, California, Loyola also known as ''Loyola Corners'' * San Martin, California, San Martin * Stanford, California, Stanford


Unincorporated communities

* Bell Station, California, Bell Station, also known as ''Bell's Station'' and ''Hollenbeck's Station'' * Casa Loma, Santa Clara County, California, Casa Loma * Chemeketa Park, California, Chemeketa Park * Coyote, California, Coyote, also known as ''Burnett'' c. 1860–1882 * East San Jose, California, East San Jose * Llagas-Uvas, California, Llagas-Uvas * Madrone, Morgan Hill, California, Madrone, now part of ''Morgan Hill'' * Redwood Estates, California, Redwood Estates * Rucker, California, Rucker *
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, also known as ''Deforest'' c. 1892–1924 * Sveadal, California, Sveadal


Census county divisions

* Diablo Range (census county division), Diablo Range * Llagas-Uvas, California, Llagas–Uvas * South Santa Clara Valley, California, South Santa Clara Valley * West Santa Clara, California, West Santa Clara


Former townships

* Almaden Township: Present-day Almaden Valley, San Jose, California, Almaden Valley, Cambrian Park, San Jose, California, Cambrian Park and portions of Campbell, California, Campbell and Los Gatos, California, Los Gatos. * Alviso Township: Present-day Alviso, San Jose, California, Alviso. * Burnett Township: Present-day Coyote, California, Coyote, Santa Teresa, San Jose, California, Santa Teresa and
Morgan Hill Morgan Hill is a city in Santa Clara County, California, at the southern tip of Silicon Valley, in the San Francisco Bay Area. Morgan Hill is an affluent residential community, the seat of several high-tech companies, and a dining, entertainmen ...
. * Fremont Township: Present-day Palo Alto, California, Palo Alto, Sunnyvale, California, Sunnyvale, Mountain View, California, Mountain View, Los Altos, California, Los Altos, Los Altos Hills, California, Los Altos Hills and part of Cupertino, California, Cupertino. * Gilroy Township: Present-day Gilroy and San Martin, California, San Martin. * Milpitas Township: Present-day Milpitas, California, Milpitas. * Redwood Township: Present-day Los Gatos, California, Los Gatos, Monte Sereno, California, Monte Sereno, Saratoga, California, Saratoga, Redwood Estates, California, Redwood Estates and portions of Cupertino, California, Cupertino and Campbell, California, Campbell. * San Jose Township: Most of present-day San Jose. * Santa Clara Township: Present-day Santa Clara, California, Santa Clara and portions of San Jose, Cupertino, California, Cupertino and Campbell, California, Campbell.


Population ranking

The population ranking of the following table is based on the 2020 United States census, 2020 census of Santa Clara County. † ''county seat''


See also

* List of attractions in Silicon Valley * List of school districts in Santa Clara County, California * National Register of Historic Places listings in Santa Clara County, California * Santa Clara County expressway system * Santa Clara County Health System * Santa Clara County Federal Credit Union *
Santa Clara Valley The Santa Clara Valley is a geologic trough in Northern California that extends 90 miles (145 km) south–southeast from San Francisco to Hollister. The longitudinal valley is bordered on the west by the Santa Cruz Mountains and on the east ...
* Second Harvest of Silicon Valley


Notes


References


External links

* *
Santa Clara County governmental committee agendas
*
Santa Clara County Planning Office

Santa Clara Valley Water District - Drinking Water



Santa Clara County Library

Santa Clara County: California's Historic Silicon Valley, a National Park Service ''Discover Our Shared Heritage'' Travel Itinerary
{{Authority control Santa Clara County, California, California counties Counties in the San Francisco Bay Area Silicon Valley 1850 establishments in California Populated places established in 1850 Majority-minority counties in California