
San Joaquin
- County:
- Fresno County
- County Seat:
- No
- Area (mi²):
- 1.197
- State:
- California
San Joaquin is a city located in Fresno County, California. San Joaquin has a 2025 population of 3,632. San Joaquin is currently declining at a rate of -0.63% annually and its population has decreased by -3.12% since the most recent census, which recorded a population of 3,749 in 2020.
The average household income in San Joaquin is $56,852 with a poverty rate of 35.83%. The median age in San Joaquin is 24.9 years: 25.6 years for males, and 24 years for females.