How many people live in San Joaquin County, CA?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 816,100 people living in San Joaquin County, CA. That makes San Joaquin County the 14th-most populous county in California. It is home to 2.1% of people living in the state.
816K
population of San Joaquin County, CA (2024)
2.1%
County share of the California population (2024)
About 816,100 people lived in San Joaquin County, CA in 2024.
Population estimates, 2000–2024
What are San Joaquin County, CA’s age demographics?
About 114,400 San Joaquin County, CA residents are aged 65 and older in 2024. That represents 14% of its population. For comparison, the age group represents 16.6% of California’s population and 18% in the US overall.
Another 206,800 San Joaquin County, CA residents, or 25.3% of the population, were children under 18. For comparison, the age group represents 21.4% of California’s population and 21.6% in the US overall.
A lower share of San Joaquin County, CA's population is aged 65 or older than the US as a whole.
Population estimates by age group, (2024)
What are San Joaquin County, CA’s racial and ethnic demographics?
Hispanic residents make up 43% of the San Joaquin County, CA population, higher than the national share of 20%. San Joaquin County, CA also has a larger share of people identifying as non-Hispanic Asian (19.6%) than the US overall (6.5%).
In contrast, San Joaquin County’s non-Hispanic white population accounts for 25.7%, below the 57.5% nationwide, and the non-Hispanic Black or African American population makes up 6.9% of the county, compared with 12.6% nationally.
Racial and ethnic make up differ based on location. These figures reflect how people identified their race alone (not in combination with other races), and separate out Hispanic or Latino ethnicity, following Census reporting standards.
San Joaquin County, CA has a higher share of a non-Hispanic Asian population than California as a whole.
Population estimates by race and ethnicity, (2024)
The largest city or town in San Joaquin County, CA is Stockton with about 325,000 residents in 2024.
Cities and towns in San Joaquin County, CA ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | Stockton | 324,975 |
| 2. | Tracy | 100,136 |
| 3. | Manteca | 94,292 |
| 4. | Lodi | 68,642 |
| 5. | Lathrop | 40,860 |
| 6. | Ripon | 16,252 |
| 7. | Escalon | 7,453 |
| 8. | Balance of San Joaquin County | 163,498 |
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Methodology
USAFacts standardizes data, in areas such as time and demographics, to make it easier to understand and compare.
The analysis was generated with the help of AI and reviewed by USAFacts for accuracy.
Page sources
USAFacts endeavors to share the most up-to-date information available. We sourced the data on this page directly from government agencies; however, the intervals at which agencies publish updated data vary.
