
Pleasant Hill
- County:
- Contra Costa County
- County Seat:
- No
- Area (mi²):
- 7.075
- State:
- California
Pleasant Hill is a city located in Contra Costa County, California. Pleasant Hill has a 2025 population of 33,267. Pleasant Hill is currently declining at a rate of -0.8% annually and its population has decreased by -3.86% since the most recent census, which recorded a population of 34,604 in 2020.
The average household income in Pleasant Hill is $172,494 with a poverty rate of 6.14%. The median age in Pleasant Hill is 42.5 years: 40 years for males, and 44.3 years for females.