San Diego County's 2026 population is estimated at 3,324,617, reflecting a 0.39% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). San Diego County is the 2nd largest county in California. The 2010 population was 3,103,260 and has grown 7.13% since 2010.
Data after 2023 is projected based on recent change
Overall: 37.3 years
Female: 38.4 years
Male: 36.2 years
There are 2,601,457 adults, (507,734 of whom are seniors) in San Diego County.
Female: 1,626,536 (49.5%)
Male: 1,662,238 (50.5%)
The racial composition of San Diego County includes 48.43% White, 12.37% Asian, 11.8% other race, 4.65% Black or African American, and smaller percentages for Native American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 1,592,607 | 48.43% |
| Two or more races | 699,565 | 21.27% |
| Asian | 406,933 | 12.37% |
| Other race | 388,026 | 11.8% |
| Black or African American | 152,969 | 4.65% |
| Native American | 35,126 | 1.07% |
| Native Hawaiian or Pacific Islander | 13,548 | 0.41% |
San Diego County 's average per capita income is $60,895. Household income levels show a median of $106,268. The poverty rate stands at 10.28%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $143,259 | $180,871 |
| Families | $122,377 | $159,814 |
| Households | $106,268 | $141,250 |
| Non Families | $72,065 | $96,765 |
Average Income
Median Household Income
Poverty Rate