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  •   State: 
    Contra Costa County
      County FIPS: 
    38°00′18″N 121°48′21″W
      Area total: 
    29.94 sq mi
      Area land: 
    29.17 sq mi (75.55 km²)
      Area water: 
    0.77 sq mi (2.00 km²)
    43 ft (13 m)
    Incorporated February 6, 1872
  •   Latitude: 
      Dman name cbsa: 
    San Francisco-Oakland-Berkeley, CA
    Pacific Standard Time (PST) UTC-8:00; Pacific Daylight Time (PDT) UTC-7:00
      ZIP codes: 

    Antioch, Contra Costa County, California, United States

  •   Population: 
      Population density: 
    3,952.25 residents per square mile of area (1,525.96/km²)
      Household income: 
      Unemployment rate: 
  •   Sales taxes: 
      Income taxes: 

Antioch is the third-largest city in Contra Costa County, California, United States. It is located in the East Bay region of the San Francisco Bay Area along the SacramentoSan Joaquin River Delta. The city's population was 115,291 at the 2020 census. In 1848, John Marsh, owner of Rancho Los Méganos, built a landing in what is now Antioch. It became known as Marsh's Landing, and was the shipping point for the 17,000-acre (69 km²) rancho. Around 1859, coal was discovered in several places in the hills south of Antioch, and coal mining formed the first substantial business apart from farming and dairying for the inhabitants of this community. In 1863, a great excitement arose over the discovery of copper ore near Antioch. Smelting works were built at Antioch and the ore fetched $15 to $25 per ton. The copper bubble eventually burst, to the dismay of the citizens, and petroleum was first drilled for near Antioch in 1865, but not enough oil was found to make a decent profit. The Post Office was opened in 1851, closed in 1852, reopened in 1855, closed again in 1862, and has operated continuously since reopening in 1863. The Antioch Ledger was first issued on March 10, 1870. It later merged with the Contra Costa Times and printed its last issue in 2005. The Time's publication, which is an expansion of the Brentwood News, published its first issue in January 2001.


Antioch is one of the oldest towns in the region. The town has been variously named East Antioch, Smith's Landing, and Marsh's Landing. In 1859, coal was discovered in several places in the hills south of Antioch, and coal mining formed the first substantial business apart from farming and dairying for the inhabitants of this community. Smelting works were built at Antioch in 1863, and the ore fetched $15 to $25 per ton. petroleum was first drilled for near Antioch in 1865, but not enough oil was found to make a decent profit. The city of Antioch was incorporated in 1872. The Antioch Ledger was first issued on March 10, 1870. The Time's weekly publication, the Antioch News, which is an expansion of the Brentwood News is published each Friday. A strictly online news source, was launched in July 2012 and then expanded to five unincorporated communities in eastern Contra Costa County in May 2011. As of 2021, due to the impacts on businesses from the COVID19-related health orders, the city's historic government orders, "Herald" will no longer be available in print or on the Internet. It will only be available online until 2020 when it was combined with the Oakley Press into one paper, The Antioch Press ( The Antioch Herald was launched online in October 2010 and expanded to three Chinese communities and three uninc incorporated communities in July 2011.


Antioch has a semi-arid climate (Köppen climate classification: BSk) with hot, dry summers, and mild winters with modest rainfall. There is a considerably higher degree of diurnal temperature variation in the summer than in the winter. The city has a total area of 29.1 square miles (75 km²), of which 28.3 sq miles (73 km²) is land and 0.7sq miles (1.8km²), comprising 2.52% is water. It is located along the San Joaquin RiverStockton Deepwater Shipping Channel at the western end of the SanJoaquinSacramento River Delta. The U.S. Census Bureau estimates the city's population in 2010 was 2,816. It had a population of 2,788 in 2010. The City of Antioch is located in the Central Coast region of California and is part of the Sacramento-San Francisco Bay Area. It has an area of 28.1 sq miles, or 75 km², with a total land area of 25.3 square miles. It also has a water area of 23.7 square miles, of which 22.2 square miles is land. It was the site of the World War II Battle of the Bulge, which took place in the early 1900s. The town is located on the San Francisco Bay, at the southern tip of the Bakersfield Peninsula. The San Francisco River runs through the city, and the city is located near the city of Stockton.


The 2010 United States Census reported that Antioch had a population of 102,372. The racial makeup of the city was 50,083 (48.9%) White, 17,667 (17.3%) African American, 887 (0.9) Native American, 10,709 (10.5%) Asian, and 7,899 (7.7%) from two or more races. 22.6% of Antioch is Mexican, 2.2% Salvadoran, 1.2%. The city's population was 90,532 as of the census of 2000, with 29,338 households, and 23,177 families residing in the city. There were 34,849 housing units at an average density of 1,198.3 per square mile (462.7/km²), of which 32,252 were occupied, of which 20,751 were owner-occupied, and 11,501 were occupied by renters. The homeowner vacancy rate was 2.7%; the rental vacancy rate was 8.2%; 64,284 people (62.8% of the population) lived in owner- occupied housing units and 37,424 people (36.6%) lived in rental housing units. The average household size was 3.15, and there were 25,023 families (77.6%), with the average family size of 3.52. The median age was 33.8 years, with 28,807 people (28.1%) under the age of 18, 10.3% aged 18 to 24, 27,459 people (26.8%) aged 25 to 44, 26,515 people (25.9%), and 8,998 people (8.8) who were 65 years of age or older.


According to the city's 2021 Annual Comprehensive Financial Report, the top employers in the city are: The city's top employers are: KPMG, Coca-Cola, McDonald's, KPMT, and Wachovia. The city is home to more than 1,000 businesses, according to the report. It is also home to the largest number of non-profit organizations in the U.S., with more than 2,000 members of the nonprofit community. It also has the highest percentage of women in the workforce, with 1.7 percent of women working in non-profits and 1.8 percent of men working in full-time jobs. It has the lowest unemployment rate in the state, and the highest rate of unemployment in the country. It's the second highest in the nation, behind only New York City, with 2.7 per cent. The top employers for women are the women of color, followed by the lesbian, gay, bisexual, transgender and transsexuals (LZGT), followed by women of all ages and ethnicities. The largest employers for men are the men of all ethnicities, with 6.8 per cent of women and men. The economy is the second-largest employer for men, with 5.7 million people. The most popular industries for men and women are construction, manufacturing and finance. The number of women of any kind is the highest for women and minorities, with 4.6 per cent and 3.4 per cent, respectively.

Arts and culture

Antioch has four Historic Places or Buildings on the National Register of Historic Places: the Black Diamond Mines, Roswell Butler Hard House, Riverview Union High School Building and the Shannon-Williamson Ranch. The historic El Campanil Theatre opened on November 1, 1928, in downtown Antioch. It now presents a wide variety of entertainment opportunities, including classic films, live theatre, concerts, symphony, ballet, comedy and is host to numerous local dance and community-based organizations. The ESPACE Academy is located within Deer Valley High School and includes a planetarium. The Contra Costa County Fairgrounds are located in Antioch. The fairgrounds hosted the first two editions of the Genesis Super Smash Bros. tournament. The Arts & Cultural Foundation of Antioch organizes education in graphic arts, sculpture, pottery, and performance arts for various age groups. It also hosts the Saturday Summer Concert Series, Delta Blues Festival, and Holiday De Lights, along with other community events. The Antioch Historical Society Museum is in the Riverview union High School building. The Lynn House Gallery houses exhibits throughout the year, with an emphasis on providing opportunities for local artists. It was created to allow local artists additional opportunities to exhibit their art and to conduct art classes. It is located in a historic bank building built in 1923 and is administered by the Arts & cultural foundation of Antioch and is in Antioch's historic downtown area. It hosts the Antioch Rivertown Theatre Group, which is a group that performs live theatre and dance.

Open space and wildlife

Antioch is home to 31 parks covering a total of 310 acres (130 ha) with an additional 600 acres (240 ha) of city-owned open space. It also has 11 miles (18 km) of walking paths connecting communities to parks and schools. Antioch Dunes National Wildlife Refuge was the first national wildlife refuge in the country established for the purpose of protecting endangered plants and insects. Burrowing owls (Athene cunicularia) moved into a 25-acre (10 ha) housing development slated for construction in late 2008. In November 2009 the California Department of Fish & Game gave the developer permission to evict the owls before nesting season begins in February 2010. The birds regularly reuse burrows for years, and there is no requirement that suitable new habitat be found for the owLS. Antioch is the first East Bay city to designate habitat protected by deed for burrowing owLS, since residents pushed for protections for those displaced by the community center at Prewett Park. Despite organized protests at Kiper Homes' Blue Ridge property by Friends of East Bay Owls, one-way doors were installed in the birds' burrows so that the owl families could not return to their nests. The Institute for Bird Populations, there has been a 50 percent decline in burrowing owl populations in the Bay Area in the last 10 to 15 years. California's population declined 60 percent from the 1980s to the early 1990s, and continues to decline at roughly 8 percent per year. The Santa Clara County population is declining and restricted to a few breeding locations, leaving Alameda, Contra Costa, and Solano counties as the remnant breeding range.


Antioch maintains a councilmanager form of government with a Mayor elected at-large, who serves as chair of the council and is elected in years divisible by four, and four Councilmembers elected in district elections. The city is protected by Contra Costa Fire and the Antioch Police Department. As of February 10, 2019, Antioch has 54,528 registered voters. Of those, 28,773 are registered Democrats, 8,096 (14.8%) are registered Republicans, and 15,012 (27.5%) have declined to state a political party. In response to threats of a lawsuit alleging violations of state law and underrepresentation of people of color, the Antioch City Council voted to switch to district elections in 2018. In 2020, the first such elections will be held in the city, with the mayor pro tempore serving as mayor for the duration of the city's current council. The mayor of Antioch is Lamar Thorpe, who was elected in 2010. The City Council consists of four members: Tamisha Torres-Walker, Michael Barbanica, Lori Ogorchock, and Monica E. Wilson. The Mayor is elected for a four-year term, and the City Council is made up of two-year terms of three-year-olds and two-term-olds. In 2010, the Mayor was elected for another four years, and was re-elected for a fifth term in 2012. In 2014, the Council elected a new mayor for a fourth term, Monica W. Wilson, to serve until the end of the current council term.


Antioch has three high schools, four middle schools, and numerous elementary schools that follow a single-track schedule. The private schools are primarily religious. The Antioch branch of the Contra Costa County Library is located in Antioch, across the street from Antioch Middle School and Antioch High School. Antioch is also home to Western Career College, located on Lone Tree Way. Also Antioch has one school for CPR and First Aid Training, Event First Aid & Safety Services located at 201 G Street, 2nd and G streets. The school district is run by the Antioch Unified School District, which consists of three schools: Antioch High, Deer Valley High, and Dozier-Libbey Medical High. The charter schools are: Antioch Charter Academy (est. 1998) andAntioch Charter Academy II (EST. 2007) The public libraries are located in the Antioch Community Center and the Prewett Library in the city's downtown area. The city is home to the California State University, San Francisco, which is located on the campus of Antioch University, which was founded in 1894. The town also has its own chapter of the National Council of Teachers of English (NCTE), which is based in San Francisco. It is the only state school district in California that does not have a charter school program. The district has a single track schedule, with school starting in late August or early September and concluding in June. It also has several private schools, including Heritage Baptist Academy (K-12) and Promised Land Christian High School (High).

Air Quality, Water Quality, Superfund Sites & UV Index

The Air Quality index is in Antioch, Contra Costa County, California = 25.3. These Air Quality index is based on annual reports from the EPA. Higher values are better (100=best). The number of ozone alert days is used as an indicator of air quality, as are the amounts of seven pollutants including particulates, carbon monoxide, sulfur dioxide, lead, and volatile organic chemicals. The Water Quality Index is 35. A measure of the quality of an area’s water supply as rated by the EPA. Higher values are better (100=best). The EPA has a complex method of measuring the watershed quality, using 15 indicators such as pollutants, turbidity, sediments, and toxic discharges. The Superfund Sites Index is 30. Higher is better (100=best). Based upon the number and impact of EPA Superfund pollution sites in the county, including spending on the cleanup efforts. The UV Index in Antioch = 5.4 and is a measure of an area's exposure to the sun's ultraviolet rays. This is most often a combination of sunny weather, altitude, and latitude. The UV Index has been defined by the WHO ( and is uniform worldwide.


The most recent city population of 115,291 individuals with a median age of 33.4 age the population grows by 13.55% in Antioch, Contra Costa County, California population since 2000 and are distributed over a density of 3,952.25 residents per square mile of area (1,525.96/km²). There are average 3.16 people per household in the 32,387 households with an average household income of $78,365 a year. The unemployment rate in Alabama is 12.90% of the available work force and has dropped -5.07% over the most recent 12-month period and the projected change in job supply over the next decade based on migration patterns, economic growth, and other factors will increase by 16.96%. The number of physicians in Antioch per 100,000 population = 232.6.


The annual rainfall in Antioch = 13.2 inches and the annual snowfall = 0 inches. The annual number of days with measurable precipitation (over .01 inch) = 55. The average number of days per year that are predominantly sunny = 263. 91 degrees Fahrenheit is the average daily high temperature for the month of July and 36.9 degrees Fahrenheit is the average daily low temperature for the month of January. The Comfort Index (higher=better) is 53, where higher values mean a more pleasant climate. The Comfort Index measure recognizes that humidity by itself isn't the problem. (Have you noticed nobody ever complains about the weather being 'cold and humid?) It's in the summertime that we notice the humidity the most, when it's hot and muggy. Our Comfort Index uses a combination of afternoon summer temperature and humidity to closely predict the effect that the humidity will have on people.

Median Home Cost

The percentage of housing units in Antioch, Contra Costa County, California which are owned by the occupant = 70.61%. A housing unit is a house, apartment, mobile home, or room occupied as separate living quarters. The average age of homes = 24 years with median home cost = $184,440 and home appreciation of -23.60%. This is the value of the years most recent home sales data. Its important to note that this is not the average (or arithmetic mean). The median home price is the middle value when you arrange all the sales prices of homes from lowest to highest. This is a better indicator than the average, because the median is not changed as much by a few unusually high or low values. The property tax rate of $7.60 shown here is the rate per $1,000 of home value. If for simplification for example the tax rate is $14.00 and the home value is $250,000, the property tax would be $14.00 x ($250,000/1000), or $3500. This is the 'effective' tax rate.


The local school district spends $4,534 per student. There are 21.6 students for each teacher in the school, 40952 students for each Librarian and 20476 students for each Counselor. 9.07% of the area’s population over the age of 25 with an Associate Degree or other 2-year college degree, 14.58% with a master’s degree, Ph.D. or other advanced college degree and 4.75% with high school diplomas or high school equivalency degrees (GEDs).

  • Antioch's population in Contra Costa County, California of 1,113 residents in 1900 has increased 103,59-fold to 115,291 residents after 120 years, according to the official 2020 census.

    Approximately 50.72% female residents and 49.28% male residents live in Antioch, Contra Costa County, California.

    As of 2020 in Antioch, Contra Costa County, California are married and the remaining 38.68% are single population.

  • 45.5 minutes is the average time that residents in Antioch require for a one-way commute to work. A long commute can have different effects on health. A Gallup poll in the US found that in terms of mental health, long haul commuters are up to 12 percent more likely to experience worry, and ten percent less likely to feel well rested. The Gallup poll also found that of people who commute 61­–90 minutes each day, a whopping one third complained of neck and back pain, compared to less than a quarter of people who only spend ten minutes getting to work.

    74.19% of the working population which commute to work alone in their car, 15.35% of the working population which commutes to work in a carpool, 4.63% of the population that commutes using mass transit, including bus, light rail, subway, and ferry. 2.84% of the population that has their home as their principal place of work.

  • Of the total residential buildings in Antioch, Contra Costa County, California, 70.61% are owner-occupied homes, another 25.50% are rented apartments, and the remaining 3.89% are vacant.

  • The 37.99% of the population in Antioch, Contra Costa County, California who identify themselves as belonging to a religion are distributed among the following most diverse religions.

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