
San Ramon
- County:
- Contra Costa County
- County Seat:
- No
- Area (mi²):
- 20.059
- State:
- California
San Ramon is a city located in Contra Costa County, California. San Ramon has a 2025 population of 83,963. San Ramon is currently declining at a rate of -0.57% annually and its population has decreased by -2.79% since the most recent census, which recorded a population of 86,377 in 2020.
The average household income in San Ramon is $235,524 with a poverty rate of 4.13%. The median age in San Ramon is 40.9 years: 40 years for males, and 41.6 years for females.