San Diego County Flag

San Diego County

State:
California
County Seat:
San Diego

San Diego County's estimated 2025 population is 3,255,567 with a growth rate of -0.22% in the past year according to the most recent United States census data. San Diego County is the 2nd largest county in California. The 2010 population was 3,103,260 and has seen a growth of 4.91% since that time.

3,255,567
Total Population
773
Population Density (mi²)
2
Population Rank (State)
-7.2K -0.22%
Annual Population Growth

San Diego County Population

San Diego County Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of San Diego County includes 53.01% White, 12.22% Asian, 10.6% other race, 4.71% Black or African American, and smaller percentages for Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White1,740,22053.01%
Two or more races594,03318.1%
Asian401,05712.22%
Other race348,07910.6%
Black or African American154,5964.71%
Native American31,0010.94%
Native Hawaiian or Pacific Islander13,7960.42%

San Diego County Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

San Diego County's average per capita income is $58,265. Household income levels show a median of $102,285. The poverty rate stands at 10.35%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median
Mean
Married Families$137,907$174,636
Families$118,115$154,118
Households$102,285$136,236
Non Families$69,026$92,867

$58,265

Average Income

$102,285

Median Household Income

10.35%

Poverty Rate