San Joaquin County, California
Located in California, San Joaquin County has a population of 797,334 residents and a median age of 35.4 years, making it the #81 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 12.4%. The median home value is $530,700, and the median household income is $92,179, which is 23% above the national median.
Demographics
San Joaquin County has a population of 797,334, making it the #81 most populous county in the US. The median age is 35.4 years, which is 9.0% below the national median.
Population Trend
Rankings →Year-over-Year Population Growth
Age & Sex Distribution
Race & Ethnicity
Nativity
Geographic Mobility (Past Year)
Economy
The median household income in San Joaquin County is $92,179, ranking #264 out of 3,222 counties — 22.7% above the national median. The poverty rate is 12.4% and unemployment stands at 7.6%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in San Joaquin County is $530,700 (+88.3% vs national). Renters pay a median of $1,734/mo and the homeownership rate is 62.0%.
Median Home Value Trend
Rankings →Household Type
Education
In San Joaquin County, 22.7% of adults age 25+ hold a bachelor's degree or higher, which is 32.5% below the national average, ranking #1,538 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in San Joaquin County is 76.4 years. 20.3% of adults report poor or fair health and 7.6% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
12.5% of adults in San Joaquin County smoke , 33.8% are obese , and 18.4% report excessive drinking. The drug overdose death rate is 23.3 per 100,000.
Adult Smoking Trend
Safety
The homicide rate in San Joaquin County is 9.5 per 100,000 and the suicide rate is 11.0 per 100,000. Motor vehicle deaths occur at a rate of 17.3 per 100,000.
Homicide Rate Trend
Families & Children
16.2% of children in San Joaquin County live in poverty and the infant mortality rate is 5.3 per 1,000 live births. The teen birth rate is 15.4 per 1,000 females age 15–19.
Infant Mortality Trend
Civic & Transportation
Voter turnout in San Joaquin County is 61.7%. The mean commute time is 36.4 min, which is 31.7% above the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, San Joaquin County voted Republican with a margin of 0.9%. The vote was 48% Dem / 48.9% Rep. Compared to 2020, the margin shifted 14.8 toward Republicans .
Vote Share Over Time
About San Joaquin County, California
San Joaquin County, California has a total population of 797,334, making it the 81st most populous county in the United States. The median age in San Joaquin County is 35.4 years, which is 9.0% below the national median of 38.9 years.
The median household income in San Joaquin County is $92,179, which ranks #264 of 3,222 counties nationwide. This is 22.7% above the national median of $75,149. The poverty rate is 12.4%, lower than the national rate of 12.6%. The unemployment rate stands at 7.6%.
The median home value in San Joaquin County is $530,700, 88.3% above the national median. Renters in San Joaquin County pay a median gross rent of $1,734 per month. The homeownership rate is 62.0%, compared to the national rate of 64.4%.
In San Joaquin County, 22.7% of residents aged 25 and older hold a bachelor's degree or higher, 32.5% below the national average of 33.7%. Health insurance coverage stands at 93.7% of the population. The average commute time for workers is 36.4 min.
San Joaquin County is a diverse community. The largest racial or ethnic group is Hispanic or Latino at 42.5% of the population, followed by White (non-Hispanic) (26.8%) and Asian (non-Hispanic) (18.2%).
All data for San Joaquin County, California comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates. These figures are estimates based on survey sampling and are subject to margin of error. For the most detailed and up-to-date data, visit the Census Bureau's official data portal.