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The County provides a wide range of health, public safety and community services to residents of the region's 18 cities and a large unincorporated area. SanDiegoCounty.gov | SanDiegoCounty .gov
San Diego County (/ ˌ s æ n d i ˈ eɪ ɡ oʊ / ⓘ), officially the County of San Diego (Spanish: Condado de San Diego), is a county in the southwestern corner of the U.S. state of California. As of the 2020 census, the population was 3,298,634, making it California's second-most populous county and the fifth-most populous in the United States.
The city is located immediately adjacent to the Mexico–United States border and is the seat of San Diego County, which has a population of nearly 3.3 million people as of 2021. 
COVID-19 in San Diego County Last updated 8/9/2023. See below, or click the following links, to learn more about COVID-19 in San Diego County. Highlights Cases, Hospitalizations, and Deaths Surveillance Vaccinations Testing Respiratory Virus Surveillance Report Archived Dashboards and Reports Highlights Updated September 28, 2023.
COVID-19 (Coronavirus Disease 2019) Know Your Risk Protect Yourself Take Action if Sick or Test Positive Latest Updates The updated COVID-19 vaccine is available throughout San Diego County. Contact your healthcare provider. If you do not have a healthcare provider, contact 2-1-1.
In 2020, the median property value in San Diego County, CA was $595,600, and the homeownership rate was 53.9%. Most people in San Diego County, CA drove alone to work, and the average commute time was 26.5 minutes. The average car ownership in San Diego County, CA was 2 cars per household.
San Diego County encompasses 18 incorporated cities and numerous other charming neighborhoods. California's second largest city and the United States' eighth largest, San Diego boasts a citywide population of nearly 1.3 million residents and more than 3 million residents countywide.
QuickFacts San Diego County, California Table (a) Includes persons reporting only one race (b) Hispanics may be of any race, so also are included in applicable race categories (c) Economic Census - Puerto Rico data are not comparable to U.S. Economic Census data D Suppressed to avoid disclosure of confidential information F Fewer than 25 firms
County of San Diego ARCC Offices Open Friday, September 22, 2023 Today is the 56 Anniversary of Native American Day in California and the third year as an Official State Holiday. Today, ARCC honors the 18 federally recognized Tribal Nation Reservations and 17 Tribal governments that serve as our customers and community members in San Diego.
County. San Diego County, California. San Diego County, California has 4,210.3 square miles of land area and is the 9th largest county in California by total area. View Profile. 16 Profiles.