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San Luis Obispo County (), officially the County of San Luis Obispo, is a
county A county is a geographic region of a country used for administrative or other purposesChambers Dictionary, L. Brookes (ed.), 2005, Chambers Harrap Publishers Ltd, Edinburgh in certain modern nations. The term is derived from the Old French ...
on the Central Coast of California. As of the 2020 census, the population was 282,424. 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 ...
is
San Luis Obispo San Luis Obispo (; Spanish for " St. Louis the Bishop", ; Chumash: ''tiłhini'') is a city and county seat of San Luis Obispo County, in the U.S. state of California. Located on the Central Coast of California, San Luis Obispo is roughly halfwa ...
.
Junípero Serra Junípero Serra y Ferrer (; ; ca, Juníper Serra i Ferrer; November 24, 1713August 28, 1784) was a Spanish Roman Catholic priest and missionary of the Franciscan Order , image = FrancescoCoA PioM.svg , image_size ...
founded the
Mission San Luis Obispo de Tolosa Mission San Luis Obispo de Tolosa ( es, Misión San Luis Obispo de Tolosa) is a Spanish mission founded September 1, 1772 by Father Junípero Serra in San Luis Obispo, California. Named after Saint Louis of Anjou, the bishop of Toulouse, the m ...
in 1772, and San Luis Obispo grew around it. The small size of the county's communities, scattered along the beaches, coastal hills, and mountains of the Santa Lucia range, provides a wide variety of coastal and inland hill ecologies to support fishing, agriculture, and tourist activities.
California Polytechnic State University California Polytechnic State University, San Luis Obispo (California Polytechnic State University, Cal Poly"Cal Poly" may also refer to California State Polytechnic University, Humboldt in Arcata, California or California State Polytechnic Univ ...
has almost 20,000 students. Tourism, especially for the wineries, is popular. Grapes and other agriculture products are an important part of the economy. San Luis Obispo County is the third largest producer of wine in California, surpassed only by Sonoma and Napa counties. Strawberries are the largest agricultural crop in the county. The town of
San Simeon San Simeon (Spanish: ''San Simeón'', meaning "St. Simon") is a village and Census-designated place on the Pacific coast of San Luis Obispo County, California, United States. Its position along State Route 1 is about halfway between Los Angeles ...
is located at the foot of the ridge where newspaper publisher
William Randolph Hearst William Randolph Hearst Sr. (; April 29, 1863 – August 14, 1951) was an American businessman, newspaper publisher, and politician known for developing the nation's largest newspaper chain and media company, Hearst Communications. His flamboya ...
built
Hearst Castle Hearst Castle, known formally as La Cuesta Encantada (Spanish for "The Enchanted Hill"), is a historic estate in San Simeon, located on the Central Coast of California. Conceived by William Randolph Hearst, the publishing tycoon, and his archit ...
. Other coastal towns (listed from north to south) include
Cambria Cambria is a name for Wales, being the Latinised form of the Welsh name for the country, . The term was not in use during the Roman period (when Wales had not come into existence as a distinct entity). It emerged later, in the medieval period, a ...
,
Cayucos Cayucos (Spanish for "Canoe") is an unincorporated coastal town in San Luis Obispo County, California, along California State Route 1 between Cambria to the north and Morro Bay to the south. The population was 2,505 at the 2020 census, down fro ...
,
Morro Bay Morro Bay (''Morro'', Spanish for "Hill") is a seaside city in San Luis Obispo County, California. Located on the Central Coast of California, the city population was 10,757 as of the 2020 census, up from 10,234 at the 2010 census. The town ...
, and Los Osos -Baywood Park. These cities and villages are located northwest of the city of San Luis Obispo. To the south are
Avila Beach Avila Beach (Spanish: ''Ávila'') is an unincorporated community in San Luis Obispo County, California, United States, located on San Luis Obispo Bay about 160 miles (257 km) northwest of Los Angeles, and about south of San Francisco. The ...
and the Five Cities region. The Five Cities originally were:
Arroyo Grande Arroyo often refers to: * Arroyo (creek), an intermittently dry creek Arroyo may also refer to: People * Arroyo (surname) Places United States ;California * Arroyo Burro Beach, a public beach park in Santa Barbara County, California * Arroyo ...
, Grover Beach (then known as Grover City),
Oceano Oceano (Spanish: ''Océano'', meaning "Ocean") is a census-designated place (CDP) in San Luis Obispo County, California, United States. The population was 7,286 at the 2010 census, up from 7,260 at the 2000 census. Geography Oceano is located a ...
, Fair Oaks and Halcyon. Today, the Five Cities region consists of Pismo Beach, Grover Beach, Arroyo Grande, Oceano, and Halcyon (basically the area from Pismo Beach to Oceano). Just south of the Five Cities, San Luis Obispo County borders northern Santa Barbara County. Inland, the cities of
Paso Robles Paso Robles ( ), officially El Paso de Robles (Spanish for "The Pass of Oaks"), is a city in San Luis Obispo County, California, United States. Located on the Salinas River approximately north of San Luis Obispo, the city is known for its hot ...
, Templeton, and
Atascadero Atascadero (Spanish for "Mire") is a city in San Luis Obispo County, California, about equidistant from Los Angeles and San Francisco on U.S. Route 101. Atascadero is part of the San Luis Obispo-Paso Robles metropolitan statistical area, which ...
lie along the Salinas River, near the Paso Robles wine region.
San Luis Obispo San Luis Obispo (; Spanish for " St. Louis the Bishop", ; Chumash: ''tiłhini'') is a city and county seat of San Luis Obispo County, in the U.S. state of California. Located on the Central Coast of California, San Luis Obispo is roughly halfwa ...
lies south of Atascadero and north of the Five Cities region.


History

The prehistory of San Luis Obispo County is strongly influenced by the
Chumash people The Chumash are a Native American people of the central and southern coastal regions of California, in portions of what is now San Luis Obispo, Santa Barbara, Ventura and Los Angeles counties, extending from Morro Bay in the north to Malibu ...
. There has been significant settlement here at least as early as the
Millingstone Horizon Millingstone Horizon is an archaeological period of Native American dominance denoting a period in California, United States involving extensive use of manos and other grinding technology. The interval is a subset of the Archaic Period; specif ...
thousands of years ago. Important settlements existed in coastal areas such as
Morro Bay Morro Bay (''Morro'', Spanish for "Hill") is a seaside city in San Luis Obispo County, California. Located on the Central Coast of California, the city population was 10,757 as of the 2020 census, up from 10,234 at the 2010 census. The town ...
and Los Osos.
Mission San Luis Obispo de Tolosa Mission San Luis Obispo de Tolosa ( es, Misión San Luis Obispo de Tolosa) is a Spanish mission founded September 1, 1772 by Father Junípero Serra in San Luis Obispo, California. Named after Saint Louis of Anjou, the bishop of Toulouse, the m ...
was founded on September 1, 1772 in the area that is now the city of
San Luis Obispo San Luis Obispo (; Spanish for " St. Louis the Bishop", ; Chumash: ''tiłhini'') is a city and county seat of San Luis Obispo County, in the U.S. state of California. Located on the Central Coast of California, San Luis Obispo is roughly halfwa ...
. The namesake of the mission, city and county is
Saint Louis of Toulouse Saint Louis of Toulouse (9 February 1274 – 19 August 1297), also known as Louis of Anjou, was a Neapolitan prince of the Capetian House of Anjou and a Catholic bishop. Life Louis was born in Brignoles, Provence (or in Italy, at Nocera, where ...
, the young
bishop of Toulouse The Roman Catholic Archdiocese of Toulouse (–Saint Bertrand de Comminges–Rieux) ( la, Archidioecesis Tolosana (–Convenarum–Rivensis); French: ''Archidiocèse de Toulouse (–Saint-Bertrand de Comminges–Rieux-Volvestre)''; Occitan: ''A ...
(''Obispo'' and ''Tolosa'' in Spanish) in 1297. San Luis Obispo County was one of the original counties of California, created in 1850 at the time of statehood. The Salinas River Valley, a region that figures strongly in several
John Steinbeck John Ernst Steinbeck Jr. (; February 27, 1902 – December 20, 1968) was an American writer and the 1962 Nobel Prize in Literature winner "for his realistic and imaginative writings, combining as they do sympathetic humor and keen social ...
novels, stretches north from San Luis Obispo County.


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 is land and (comprising 8.8%) is water.


Climate

San Luis Obispo County has three main climate types. BSk climate can mainly be found in the eastern portions of the county, along with certain smaller areas in the north. Csa climate can mainly be found in the central portions of the counties, in communities such as Paso Robles. The rest of the county is made up of the Csb climate type.


Adjacent counties


National protected areas

*
Carrizo Plain National Monument The Carrizo Plain ( Obispeño: ''tšɨłkukunɨtš'', "Place of the rabbits") is a large enclosed grassland plain, approximately long and up to across, in southeastern San Luis Obispo County, California, about northwest of Los Angeles. It co ...
(part) * Guadalupe-Nipomo Dunes National Wildlife Refuge (part) *
Los Padres National Forest Los Padres National Forest is a United States national forest in Southern California, southern and central California. Administered by the United States Forest Service, Los Padres includes most of the mountainous land along the California coast ...
(part)


Marine Protected Areas

* Piedras Blancas State Marine Reserve and Marine Conservation Area *
Cambria State Marine Conservation Area Cambria State Marine Conservation Area (SMCA) is a marine protected area located off the coast of the city of Cambria, California on California’s central coast in San Luis Obispo County, California. The marine protected area covers . Within the ...
*
White Rock (Cambria) State Marine Conservation Area White Rock (Cambria) State Marine Conservation Area (SMCA) is a marine protected area located off the coast of the city of Cambria, California on California’s central coast. The marine protected area covers . Within the SMCA the take of all li ...
*
Morro Bay State Marine Recreational Management Area and Morro Bay State Marine Reserve Morro Bay State Marine Recreational Management Area (SMRMA) and Morro Bay State Marine Reserve (SMR) are two marine protected areas that provide protection for Morro Bay Estuary on California's central coast. The two marine protected areas togeth ...
*
Point Buchon State Marine Reserve and Marine Conservation Area Point Buchon State Marine Reserve (SMR) and Point Buchon State Marine Conservation Area (SMCA) are two adjoining marine protected areas that lie offshore Point Buchon in San Luis Obispo County on California’s central coast. The combined area ...


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.''


2011


Places by population, race, and income


2010

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 San Luis Obispo County had a population of 269,637. The racial makeup of San Luis Obispo County was 222,756 (82.6%)
White White is the lightest color and is achromatic (having no hue). It is the color of objects such as snow, chalk, and milk, and is the opposite of black. White objects fully reflect and scatter all the visible wavelengths of light. White on ...
, 5,550 (2.1%)
African American African Americans (also referred to as Black Americans and Afro-Americans) are an ethnic group consisting of Americans with partial or total ancestry from sub-Saharan Africa. The term "African American" generally denotes descendants of ens ...
, 2,536 (0.9%) Native American, 8,507 (3.2%)
Asian Asian may refer to: * Items from or related to the continent of Asia: ** Asian people, people in or descending from Asia ** Asian culture, the culture of the people from Asia ** Asian cuisine, food based on the style of food of the people from Asi ...
(1.0% Filipino, 0.6% Chinese, 0.4% Japanese, 0.3% Indian, 0.3% Korean, 0.2% Vietnamese), 389 (0.1%)
Pacific Islander Pacific Islanders, Pasifika, Pasefika, or rarely Pacificers are the peoples of the list of islands in the Pacific Ocean, Pacific Islands. As an ethnic group, ethnic/race (human categorization), racial term, it is used to describe the original p ...
, 19,786 (7.3%) from
other races Other often refers to: * Other (philosophy), a concept in psychology and philosophy Other or The Other may also refer to: Film and television * ''The Other'' (1913 film), a German silent film directed by Max Mack * ''The Other'' (1930 film), a ...
, and 10,113 (3.8%) from two or more races.
Hispanic The term ''Hispanic'' ( es, hispano) refers to people, Spanish culture, cultures, or countries related to Spain, the Spanish language, or Hispanidad. The term commonly applies to countries with a cultural and historical link to Spain and to Vic ...
or
Latino Latino or Latinos most often refers to: * Latino (demonym), a term used in the United States for people with cultural ties to Latin America * Hispanic and Latino Americans in the United States * The people or cultures of Latin America; ** Latin A ...
of any race were 55,973 persons (20.8%); 17.7% of San Luis Obispo County is Mexican, 0.3% Puerto Rican, and 0.2% Salvadoran.


2000 Census

As of the
census A census is the procedure of systematically acquiring, recording and calculating information about the members of a given population. This term is used mostly in connection with national population and housing censuses; other common censuses incl ...
of 2000, there were 246,681 residents, 92,739 households, and 58,611 families in the county. The
population density Population density (in agriculture: standing stock or plant density) is a measurement of population per unit land area. It is mostly applied to humans, but sometimes to other living organisms too. It is a key geographical term.Matt RosenberPopul ...
was 75 people per square mile (29/km2). There were 102,275 housing units at an average density of 31 per square mile (12/km2). The racial makeup of the county was 84.6%
White White is the lightest color and is achromatic (having no hue). It is the color of objects such as snow, chalk, and milk, and is the opposite of black. White objects fully reflect and scatter all the visible wavelengths of light. White on ...
, 2.0%
Black Black is a color which results from the absence or complete absorption of visible light. It is an achromatic color, without hue, like white and grey. It is often used symbolically or figuratively to represent darkness. Black and white have o ...
or
African American African Americans (also referred to as Black Americans and Afro-Americans) are an ethnic group consisting of Americans with partial or total ancestry from sub-Saharan Africa. The term "African American" generally denotes descendants of ens ...
, 1.0% Native American, 2.7%
Asian Asian may refer to: * Items from or related to the continent of Asia: ** Asian people, people in or descending from Asia ** Asian culture, the culture of the people from Asia ** Asian cuisine, food based on the style of food of the people from Asi ...
, 0.1%
Pacific Islander Pacific Islanders, Pasifika, Pasefika, or rarely Pacificers are the peoples of the list of islands in the Pacific Ocean, Pacific Islands. As an ethnic group, ethnic/race (human categorization), racial term, it is used to describe the original p ...
, 6.2% from
other races Other often refers to: * Other (philosophy), a concept in psychology and philosophy Other or The Other may also refer to: Film and television * ''The Other'' (1913 film), a German silent film directed by Max Mack * ''The Other'' (1930 film), a ...
, and 3.4% from two or more races. 16.3% of the population were
Hispanic The term ''Hispanic'' ( es, hispano) refers to people, Spanish culture, cultures, or countries related to Spain, the Spanish language, or Hispanidad. The term commonly applies to countries with a cultural and historical link to Spain and to Vic ...
or
Latino Latino or Latinos most often refers to: * Latino (demonym), a term used in the United States for people with cultural ties to Latin America * Hispanic and Latino Americans in the United States * The people or cultures of Latin America; ** Latin A ...
of any race. 13.9% were of
German German(s) may refer to: * Germany (of or related to) **Germania (historical use) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizens of Germany, see also German nationality law **Ger ...
, 11.4%
English English usually refers to: * English language * English people English may also refer to: Peoples, culture, and language * ''English'', an adjective for something of, from, or related to England ** English national ide ...
, 9.7%
Irish Irish may refer to: Common meanings * Someone or something of, from, or related to: ** Ireland, an island situated off the north-western coast of continental Europe ***Éire, Irish language name for the isle ** Northern Ireland, a constituent unit ...
, 6.1%
American American(s) may refer to: * American, something of, from, or related to the United States of America, commonly known as the "United States" or "America" ** Americans, citizens and nationals of the United States of America ** American ancestry, pe ...
and 5.7%
Italian Italian(s) may refer to: * Anything of, from, or related to the people of Italy over the centuries ** Italians, an ethnic group or simply a citizen of the Italian Republic or Italian Kingdom ** Italian language, a Romance language *** Regional Ita ...
ancestry according to
Census 2000 The United States census of 2000, conducted by the Census Bureau, determined the resident population of the United States on April 1, 2000, to be 281,421,906, an increase of 13.2 percent over the 248,709,873 people enumerated during the 1990 cen ...
. 85.7% spoke
English English usually refers to: * English language * English people English may also refer to: Peoples, culture, and language * ''English'', an adjective for something of, from, or related to England ** English national ide ...
and 10.7%
Spanish Spanish might refer to: * Items from or related to Spain: **Spaniards are a nation and ethnic group indigenous to Spain **Spanish language, spoken in Spain and many Latin American countries **Spanish cuisine Other places * Spanish, Ontario, Cana ...
as their first language. There were 92,739 households, out of which 28.2% had children under the age of 18 living with them, 50.40% were
married couples Marriage, also called matrimony or wedlock, is a culturally and often legally recognized union between people called spouses. It establishes rights and obligations between them, as well as between them and their children, and between t ...
living together, 9.1% had a female householder with no husband present, and 36.8% were non-families. 26.0% of all households were made up of individuals, and 10.3% had someone living alone who was 65 years of age or older. The average household size was 2.49 and the average family size was 3.01. In the county, the population was spread out, with 21.7% under the age of 18, 13.6% from 18 to 24, 27.0% from 25 to 44, 23.3% from 45 to 64, and 14.5% who were 65 years of age or older. The median age was 37 years. For every 100 females there were 105.6 males. For every 100 females age 18 and over, there were 105.2 males. The median income for a household in the county was $42,428, and the median income for a family was $52,447. Males had a median income of $40,726 versus $27,450 for females. The
per capita income Per capita income (PCI) or total income measures the average income earned per person in a given area (city, region, country, etc.) in a specified year. It is calculated by dividing the area's total income by its total population. Per capita i ...
for the county was $21,864. About 6.8% of families and 12.8% of the population were below the
poverty line The poverty threshold, poverty limit, poverty line or breadline is the minimum level of income deemed adequate in a particular country. The poverty line is usually calculated by estimating the total cost of one year's worth of necessities for t ...
, including 11.4% of those under age 18 and 5.9% of those age 65 or over.


Economy

The mainstays of the economy are
California Polytechnic State University California Polytechnic State University, San Luis Obispo (California Polytechnic State University, Cal Poly"Cal Poly" may also refer to California State Polytechnic University, Humboldt in Arcata, California or California State Polytechnic Univ ...
with its almost 20,000 students, tourism, and agriculture. San Luis Obispo County's economy is primarily a service economy. Service jobs account for 38% of the County's jobs, government jobs accounts for 20.7%, and manufacturing jobs represent 6% of the County's jobs. San Luis Obispo County is the third largest producer of wine in California, surpassed only by Sonoma and Napa counties. Wine grapes are the second largest agricultural crop in the county (after strawberries), and the wine production they support creates a direct economic impact and a growing wine country vacation industry. The county led the state in
hemp Hemp, or industrial hemp, is a botanical class of ''Cannabis sativa'' cultivars grown specifically for industrial or medicinal use. It can be used to make a wide range of products. Along with bamboo, hemp is among the fastest growing plants o ...
cultivation in 2018 as hundreds of acres of the crop were grown in research partnerships. In 2019, nine agricultural research permits were still active. Sixteen commercial permits were issued before a temporary ban on new applications running through June 2020 was passed by the Board of Supervisors.


Politics


Voter registration


Cities by population and voter registration


Overview

San Luis Obispo County leaned toward the Republican Party in presidential and congressional elections during the most of the 20th century; it has, however, become more Democratic starting in the 2000s. In 2008,
Barack Obama Barack Hussein Obama II ( ; born August 4, 1961) is an American politician who served as the 44th president of the United States from 2009 to 2017. A member of the Democratic Party, Obama was the first African-American president of the U ...
won the county with 51.2 percent of the vote. Prior to 2008, the last
Democrat Democrat, Democrats, or Democratic may refer to: Politics *A proponent of democracy, or democratic government; a form of government involving rule by the people. *A member of a Democratic Party: **Democratic Party (United States) (D) **Democratic ...
to win a majority in the county was
Lyndon Johnson Lyndon Baines Johnson (; August 27, 1908January 22, 1973), often referred to by his initials LBJ, was an American politician who served as the 36th president of the United States from 1963 to 1969. He had previously served as the 37th vice ...
in
1964 Events January * January 1 – The Federation of Rhodesia and Nyasaland is dissolved. * January 5 - In the first meeting between leaders of the Roman Catholic and Orthodox churches since the fifteenth century, Pope Paul VI and Patriarch ...
, although
Bill Clinton William Jefferson Clinton ( né Blythe III; born August 19, 1946) is an American politician who served as the 42nd president of the United States from 1993 to 2001. He previously served as governor of Arkansas from 1979 to 1981 and agai ...
won a plurality in
1992 File:1992 Events Collage V1.png, From left, clockwise: 1992 Los Angeles riots, Riots break out across Los Angeles, California after the Police brutality, police beating of Rodney King; El Al Flight 1862 crashes into a residential apartment buildi ...
. In 2012, Obama again won the county, this time with a slim plurality of the vote.
Hillary Clinton Hillary Diane Rodham Clinton ( Rodham; born October 26, 1947) is an American politician, diplomat, and former lawyer who served as the 67th United States Secretary of State for President Barack Obama from 2009 to 2013, as a United States sen ...
won with a larger plurality in 2016; and in 2020, Joe Biden won a solid 55% of the vote, the largest for any Democrat since Lyndon Johnson in 1964. County voters supported Republican
Meg Whitman Margaret Cushing Whitman (born August 4, 1956) is the US ambassador to Kenya, an American business executive and former gubernatorial candidate for California. She is a board member of Procter & Gamble and General Motors. Whitman was previously ...
in 2010 and Democrat
Jerry Brown Edmund Gerald Brown Jr. (born April 7, 1938) is an American lawyer, author, and politician who served as the 34th and 39th governor of California from 1975 to 1983 and 2011 to 2019. A member of the Democratic Party, he was elected Secretary of S ...
in 2014. The previous Democrat to carry the county in a gubernatorial election was
Gray Davis Joseph Graham "Gray" Davis Jr. (born December 26, 1942) is an American attorney and former politician who served as the 37th governor of California from 1999 to 2003. In 2003, only a few months into his second term, Davis was recalled and remov ...
in 1998. With respect to the
United States House of Representatives The United States House of Representatives, often referred to as the House of Representatives, the U.S. House, or simply the House, is the Lower house, lower chamber of the United States Congress, with the United States Senate, Senate being ...
, San Luis Obispo County is in . From 2003 until 2013, the county was split between the Bakersfield-based 22nd district, which was represented by Republican
Kevin McCarthy Kevin Owen McCarthy (born January 26, 1965) is an American politician, serving as Party leaders of the United States House of Representatives, House Minority Leader in the United States House of Representatives since 2019. A member of the Rep ...
and included
Paso Robles Paso Robles ( ), officially El Paso de Robles (Spanish for "The Pass of Oaks"), is a city in San Luis Obispo County, California, United States. Located on the Salinas River approximately north of San Luis Obispo, the city is known for its hot ...
and most of the more conservative inland areas of the county, and Lois Capps' 23rd district, a strip which included most of the county's more liberal coastal areas as well as coastal areas of Santa Barbara and Ventura counties. With respect to the
California State Senate The California State Senate is the upper house of the California State Legislature, the lower house being the California State Assembly. The State Senate convenes, along with the State Assembly, at the California State Capitol in Sacramento, Cal ...
, the county is in . With respect to the
California State Assembly The California State Assembly is the lower house of the California State Legislature, the upper house being the California State Senate. The Assembly convenes, along with the State Senate, at the California State Capitol in Sacramento. The A ...
, the county is in . In April 2008, the California Secretary of State reported that there were 147,326 registered voters in San Luis Obispo County. Of those voters, 61,226 (41.6%) were registered Republicans, 52,586 (35.7%) were registered Democratic, 8,030 (5.4%) are registered with other political parties, and 25,484 (17.3%) declined to state a political preference. The cities of Grover Beach, Morro Bay, and San Luis Obispo had pluralities or majorities of registered Democratic voters, whereas the rest of the county's towns, cities, and the unincorporated areas have a plurality or majority of registered Republican voters.


Crime

The following table includes the number of incidents reported and the rate per 1,000 persons for each type of offense.


Cities by population and crime rates


Transportation


Major highways

*
U.S. Route 101 U.S. Route 101, or U.S. Highway 101 (US 101), is a north–south United States Numbered Highway that runs through the states of California, Oregon, and Washington, on the West Coast of the United States. It is also known as (The Royal Roa ...
* State Route 1 * State Route 33 *
State Route 41 The following highways are numbered 41: International * AH41, Asian Highway 41 * European route E41 Australia * Olympic Highway * Mid-Western Highway Canada * Alberta Highway 41 * British Columbia Highway 41 * Manitoba Highway 41 * Newfoundlan ...
* State Route 46 *
State Route 58 The following highways are numbered 58: International * European route E58 Australia * Riverina Highway Canada * Alberta Highway 58 * Highway 58 (Ontario) * Saskatchewan Highway 58 Finland * Finnish national road 58 India * National Highw ...
* State Route 166 * State Route 227 * State Route 229


Public transportation

San Luis Obispo County is served by
Amtrak The National Railroad Passenger Corporation, Trade name, doing business as Amtrak () , is the national Passenger train, passenger railroad company of the United States. It operates inter-city rail service in 46 of the 48 contiguous United Stat ...
trains and
Greyhound Lines Greyhound Lines, Inc. (commonly known as simply Greyhound) operates the largest intercity bus service in North America, including Greyhound Mexico. It also operates charter bus services, Amtrak Thruway services, commuter bus services, and pac ...
buses. The
San Luis Obispo Regional Transit Authority The San Luis Obispo Regional Transit Authority is the provider of intercity mass transportation in San Luis Obispo County, California San Luis Obispo County (), officially the County of San Luis Obispo, is a county on the Central Coast of C ...
provides countywide service along US 101 as well as service to Morro Bay, Los Osos, Cambria and San Simeon. The cities of San Luis Obispo, Atascadero and Paso Robles operate their own local bus services; all of these connect with SLORTA routes. Intercity service is provided by
Amtrak The National Railroad Passenger Corporation, Trade name, doing business as Amtrak () , is the national Passenger train, passenger railroad company of the United States. It operates inter-city rail service in 46 of the 48 contiguous United Stat ...
trains,
Greyhound Lines Greyhound Lines, Inc. (commonly known as simply Greyhound) operates the largest intercity bus service in North America, including Greyhound Mexico. It also operates charter bus services, Amtrak Thruway services, commuter bus services, and pac ...
and
Orange Belt Stages Orange Belt Stages was a bus company based in Visalia, California, affiliated with the Trailways Transportation System. The company was incorporated on November 30, 1935, and operated scheduled service in California as well as charter services. T ...
buses.


Airports

*
San Luis Obispo County Regional Airport San Luis Obispo County Regional Airport , McChesney Field is a civil airport near San Luis Obispo, California, United States. Three passenger airlines serve the airport with nonstop flights to eight cities: Dallas-Fort Worth, Denver, Los Angeles ...
(SBP) is located just south of the City of San Luis Obispo. Commercial flights are available. *
Paso Robles Municipal Airport Paso Robles Municipal Airport is four miles (6 km) northeast of downtown Paso Robles, in San Luis Obispo County, California, United States. Facilities The airport covers 1,300 acres (5.3 km²) and has two runways and one helipad: * 1 ...
(PRB) is located north-east of the City of Paso Robles and is home to California Highway Patrol, CAL-FIRE and the
Estrella Warbirds Museum The Estrella Warbirds Museum is an aviation museum dedicated to the restoration and preservation of military aircraft, vehicles, and memorabilia. The museum is located at Paso Robles Municipal Airport in central California and is named after Est ...
. * Oceano County Airport (L52) is located on the coast in the 5 Cities area.


Future

In the future, SR 46 may be considered for a possible westward expansion of
Interstate 40 Interstate 40 (I-40) is a major east–west Interstate Highway running through the south-central portion of the United States. At a length of , it is the third-longest Interstate Highway in the country, after I-90 and I-80. From west to ea ...
via SR 58 from Barstow to Bakersfield, from Bakersfield to I-5 via Westside Parkway, and then following SR 46 to Paso Robles. SR 46 is slowly being upgraded to Interstate standards, minus overpasses between Interstate 5 and US Route 101.


Communities


Cities

*
Arroyo Grande Arroyo often refers to: * Arroyo (creek), an intermittently dry creek Arroyo may also refer to: People * Arroyo (surname) Places United States ;California * Arroyo Burro Beach, a public beach park in Santa Barbara County, California * Arroyo ...
*
Atascadero Atascadero (Spanish for "Mire") is a city in San Luis Obispo County, California, about equidistant from Los Angeles and San Francisco on U.S. Route 101. Atascadero is part of the San Luis Obispo-Paso Robles metropolitan statistical area, which ...
* Grover Beach *
Morro Bay Morro Bay (''Morro'', Spanish for "Hill") is a seaside city in San Luis Obispo County, California. Located on the Central Coast of California, the city population was 10,757 as of the 2020 census, up from 10,234 at the 2010 census. The town ...
*
Paso Robles Paso Robles ( ), officially El Paso de Robles (Spanish for "The Pass of Oaks"), is a city in San Luis Obispo County, California, United States. Located on the Salinas River approximately north of San Luis Obispo, the city is known for its hot ...
*
Pismo Beach Pismo Beach (Chumash: ''Pismuʔ'') is a city in the southern portion of San Luis Obispo County, in the Central Coast area of California, United States. The estimated population was 8,072 at the 2020 census, up from 7,655 in the 2010 census. It ...
*
San Luis Obispo San Luis Obispo (; Spanish for " St. Louis the Bishop", ; Chumash: ''tiłhini'') is a city and county seat of San Luis Obispo County, in the U.S. state of California. Located on the Central Coast of California, San Luis Obispo is roughly halfwa ...
(county seat)


Unincorporated communities

*
Avila Beach Avila Beach (Spanish: ''Ávila'') is an unincorporated community in San Luis Obispo County, California, United States, located on San Luis Obispo Bay about 160 miles (257 km) northwest of Los Angeles, and about south of San Francisco. The ...
* Baywood Park * Blacklake *
California Polytechnic State University California Polytechnic State University, San Luis Obispo (California Polytechnic State University, Cal Poly"Cal Poly" may also refer to California State Polytechnic University, Humboldt in Arcata, California or California State Polytechnic Univ ...
* California Valley * Callender *
Cambria Cambria is a name for Wales, being the Latinised form of the Welsh name for the country, . The term was not in use during the Roman period (when Wales had not come into existence as a distinct entity). It emerged later, in the medieval period, a ...
*
Cayucos Cayucos (Spanish for "Canoe") is an unincorporated coastal town in San Luis Obispo County, California, along California State Route 1 between Cambria to the north and Morro Bay to the south. The population was 2,505 at the 2020 census, down fro ...
* Creston * Cholame * Edna * Garden Farms *
Halcyon Halcyon is a name originally derived from Alcyone of Greek mythology. Halcyon or Halcyone may refer to: Arts and entertainment Television * ''Halcyon'' (TV series), a Virtual Reality murder mystery on SyFy * ''The Halcyon'', British period ...
*
Harmony In music, harmony is the process by which individual sounds are joined together or composed into whole units or compositions. Often, the term harmony refers to simultaneously occurring frequencies, pitches ( tones, notes), or chords. However ...
*
Lake Nacimiento Lake Nacimiento is an long lake on the Nacimiento River in northern San Luis Obispo County, California. The lake contains many arms including Snake Creek and Dip Creek, nearer the dam, and the central Las Tablas and Franklin Creeks. Due to th ...
* Los Berros * Los Osos * Los Ranchos *
Nipomo Nipomo (; Chumash: ''Nipumuʔ'') is a unincorporated town in San Luis Obispo County, California, United States. The population was 16,714 for the 2010 census and grew to 18,176 for the 2020 census. For statistical purposes, the United States ...
* Oak Shores *
Oceano Oceano (Spanish: ''Océano'', meaning "Ocean") is a census-designated place (CDP) in San Luis Obispo County, California, United States. The population was 7,286 at the 2010 census, up from 7,260 at the 2000 census. Geography Oceano is located a ...
* Pozo * San Miguel *
San Simeon San Simeon (Spanish: ''San Simeón'', meaning "St. Simon") is a village and Census-designated place on the Pacific coast of San Luis Obispo County, California, United States. Its position along State Route 1 is about halfway between Los Angeles ...
* Santa Margarita * Shandon * Templeton * Whitley Gardens *
Woodlands Woodlands may back refer to: * Woodland, a low-density forest Geography Australia * Woodlands, New South Wales * Woodlands, Ashgrove, Queensland, a heritage-listed house associated with John Henry Pepper * Woodlands, Marburg, Queensland, a her ...


Population ranking

The population ranking of the following table is based on the 2020 census of San Luis Obispo County. † ''county seat''


See also

*
San Luis Obispo County Search and Rescue San Luis Obispo County Sheriff Search and Rescue is an all-volunteer organization in San Luis Obispo County within the county's Sheriff's office. With approximately fifty active members year round, San Luis Obispo County's Search and Rescue (SLOS ...
*
List of museums in the California Central Coast The Central Coast (California), California Central Coast is an area roughly spanning the area between the Monterey Bay extending through Santa Cruz County, California, Santa Cruz County, San Benito County, California, San Benito County, Monterey C ...
* List of school districts in San Luis Obispo County, California *
National Register of Historic Places listings in San Luis Obispo County, California __NOTOC__ This is a list of the National Register of Historic Places listings in San Luis Obispo County, California. This is intended to be a complete list of the properties and districts on the National Register of Historic Places in San Luis O ...
* '' San Luis Obispo Pioneer,'' the county's first newspaper * Dalidio Ranch Project controversy, a controversy involving San Luis Obispo County *
Amphibious Training Base Morro Bay Amphibious Training Base Morro Bay also called Camp Morro Bay and Morro Bay Section Base was a US Navy training base for amphibious beach assault during World War II. The base opened in 1941 to train troops for the Pacific theater of operatio ...


Notes


Footnotes


Further reading

* Charles Montville Gidney, Benjamin Brooks, and Edwin M. Sheridan, ''History of Santa Barbara, San Luis Obispo and Ventura Counties, California.'' In Two Volumes. Chicago: Lewis Publishing Co., 1917
Volume 1

Volume 2
* Yda Addis Storke
''A Memorial and Biographical History of the Counties of Santa Barbara, San Luis Obispo and Ventura, California...''
Chicago: Lewis Publishing Co., 1891.


External links

{{authority control California counties 1850 establishments in California Populated places established in 1850