San Diego County, officially the County of San Diego, is a county in the southwestern corner of the state of California, in the United States.As of the 2010 census, the population was 3,095,313, making it California's second-most populous county and the fifth-most populous in the United States. U.S. Census Bureau. Performance. United States Department of Justice, Federal Bureau of Investigation.  The atmosphere at Election Central on the evening of election day has been compared to the voting portion of a political party national convention. On its western side is more than 70 miles (113 km) of coastline. As of 2000, in the county the population was spread out, with 25.7% under the age of 18, 11.30% from 18 to 24, 32.0% from 25 to 44, 19.8% from 45 to 64, and 11.2% who were 65 years of age or older.  Brewing has been one of the fastest-growing business sectors with local breweries ranking among the 50 largest craft brewers in the United States and breweries that are consistently rated among the top breweries in the world. From 1821 through 1848 this area was part of Mexico. In addition, several entities of the government of California have jurisdiction conterminous with San Diego County, such as the San Diego Superior Court. As a regional economy, the Southern Border Region is the smallest but most economically diverse region in the state.  As of 2018[update], San Diego County is within the top ten highest cost of rent in the United States; this has led to people moving out of the county. sandiegodata.org-demographics-tract-1.1.1. North San Diego County is known as North County; the exact geographic definitions of "North County" vary, but it includes the northern suburbs and sometimes certain northern neighborhoods of the City of San Diego. County government offices are housed in the historic County Administration Center Building, constructed in 1935–1938 with funding from the Works Progress Administration.  According to the University of Southern California, in 2010, the largest faith in the county was Catholicism, followed by Nondenominational Christians, and Mormons. Ranking Tables for Counties: 1990 and 2000", "2010 Census P.L. The population ranking of the following table is based on the 2010 census of San Diego County. During the later part of the 19th century, there were numerous changes in the boundaries of San Diego County, when various areas were separated to make up the counties mentioned above. The total number of households is 1,118,982 with 3 people per household on average.The median age of the current population is 37 with 1,325,012 people being married and 1,412,188 being single. All rights reserved. The dataset includes three files all from the Census, detailing age and sex and race ethnicity. The county's largest continuous high-income urban area is a triangle from a first point on the northern edge of Carlsbad, a second point southeast of Escondido, and a third point on the southern edge of La Jolla. Mean monthly maxima and minima (i.e. The area which is now San Diego County has been inhabited for more than 12,000 years by Kumeyaay (also called Diegueno and Ipai/Tipai), Luiseño, Cupeño and Cahuilla Indians and their local predecessors.. As of 2018 Census Bureau estimates, there were 3,343,364 people, 1,067,846 households, and 663,449 families residing in the county. Museums such as the San Diego Museum of Man, San Diego Museum of Art, Reuben H. Fleet Science Center, San Diego Natural History Museum, USS Midway Museum, and the San Diego Air and Space Museum.  Borrego Springs, in the Colorado Desert, has an average January low of 43 °F (6 °C) and August high of 106 °F (41 °C)..  Including those of mixed race, the total number of residents with Asian ancestry was 407,984.. Many of the area's cities, towns and neighborhoods have their own local newspapers; the Union Tribune bought eight local weeklies in 2013 and is continuing to publish them as independent local newspapers. Although the county's western third is primarily urban, the mountains and deserts in the eastern two-thirds are primarily undeveloped backcountry. The major regional paper is The San Diego Union-Tribune, also known as U-T San Diego, is ranked 23rd in the country (by daily circulation) as of March 2013. American Community Survey, 2011 American Community Survey 5-Year Estimates, Table B19301. Wildlife refuges, zoos, and aquariums such as the Birch Aquarium at Scripps, San Diego Zoo's Safari Park, San Diego Zoo and San Diego-La Jolla Underwater Park. Teacher Salary. San Diego County became part of the United States as a result of the Treaty of Guadalupe Hidalgo in 1848, ending the Mexican–American War. Four of these are integral parts of Cleveland National Forest, whereas three are managed by the Bureau of Land Management. The county has been called "the Craft Beer Capital of America". In 2012, it was estimated that there were 198,000 unauthorized immigrants; the origin of the plurality of them is Mexico. Age, Race, Sex and Ethnicity, by tract for San Diego county. These codes are: For the most part you will use the nh_* for all races, hisp_white for hispanics, and nh_white for whites. The most recent are the December 2017 Lilac Fire and the May 2014 San Diego County wildfires; before them was the Witch Creek Fire in 2007 and the Cedar Fire in 2003. According to the U.S. Census Bureau, the county has an area of 4,526 square miles (11,720 km2), of which 4,207 square miles (10,900 km2) is land and 319 square miles (830 km2) (7.0%) is water. 24.2% of all households were made up of individuals, and 7.9% had someone living alone who was 65 years of age or older. It contains all or most of the cities of Carlsbad, Encinitas, Solana Beach, Del Mar, and Poway in addition to a substantial portion of northern San Diego. Percentages of party members with respect to registered voters follow. The city of San Diego itself is more Democratic than the county's average and has voted for Democrats in each presidential election since 1992.