Cities & Towns in San Diego County, CA

San Diego County, San Diego County, founded in 1850, is one of 58 counties in the US state of California. In 2010 census, the county had a population of 3,222,466 and a population density of 275 people per km², making it the fifth most populous county in the United States and the second in California. In 2019 county had a population of 3,338,330.. The county's headquarters are San Diego.. As of 2020 county had an estimated population of 3,332,427 inhabitants. The county was created 174 years ago in 1850. Its county seat is San Diego.

There are 1 city/town in San Diego County, CA. The largest city of San Diego County is Winter Gardens with a population of 20,631.

Winter Gardens
Winter Gardens

Winter Gardens, Census-designated place in San Diego County, California

San Diego County is home to 18 incorporated cities, each with its own unique character and attractions. From the beaches of coastal towns like Oceanside and Imperial Beach to inland communities like Escondido and El Cajon, the cities of San Diego County offer residents and visitors diverse options for living, working, dining, and exploring.

The city of San Diego is the county seat and largest city, known for its beautiful beaches, the historic Gaslamp Quarter, Balboa Park, and world-famous San Diego Zoo. Just north of San Diego you'll find Encinitas, an iconic surf town with great shops and restaurants. Coastal Carlsbad is popular for its flower fields and LEGOLAND amusement park.

Inland, La Mesa and El Cajon cater to a more suburban lifestyle with quality schools and neighborhoods. Lemon Grove and Santee are other great East County communities. Down south, Chula Vista and National City are economic hubs near the US-Mexico border.

No matter your interests - arts, dining al fresco, sports, or outdoor activities - you'll find vibrant cities and towns to explore across San Diego County. The mild climate, diverse neighborhoods, and laidback vibe make it an ideal place to live, work, and play.

All San Diego County Cities (Aphebetical)

List of cities, towns, neighborhoods & other populated places in San Diego County.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z all
City Name Title Population
Winter Gardens Census-designated place in San Diego County, California 20,631
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County Cities on Map (1)