California Outline

Is San Diego County the best California county for your business?

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San Diego County Population

All San Diego County population data above are from the US Census Bureau.

The population data for San Diego County are from the Census 2000, Census 2010, the Census' American Community Survey 2015 5-year estimates and the Census' 2016 Population Estimates. The demographic data for Orange County, Riverside County, Santa Barbara County, and Sonoma County are the most current, comparable demographics available from the US Census Bureau, are from the American Community Survey 2015 5-year estimates, and were downloaded on December 2016. Check out our FAQ section for more details.

San Diego County Demographics Summary

population icon Population

With 3,317,749 people, San Diego County is the 2nd most populated county in the state of California out of 58 counties. But watch out, San Diego County, because Orange County with 3,172,532 people and Riverside County with 2,387,741 people are right behind you.

race icon Race & Ethnicity

The largest San Diego County racial/ethnic groups are White (47.0%) followed by Hispanic (32.9%) and Asian (11.2%).

income icon Median Income

In 2015, the median household income of San Diego County residents was $64,309. San Diego County households made slightly more than Santa Barbara County households ($63,985) and Sonoma County households ($64,240) . However, 14.5% of San Diego County residents live in poverty.

age icon Median Age

The median age for San Diego County residents is 35.1 years young.


86% of people CANNOT find the data they're looking for on the US Census Bureau website. Source: Nielsen Norman Group

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