California Contra Costa County
Pleasant Hill
A city in Contra Costa County, California — population 34,781 as of 2020.
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Heat Advisory — Heat Advisory issued October 3 at 7:48PM PDT until October 7 at 10:00PM PDT by NWS San Francisco CA
This Afternoon
100°F
Mostly Cloudy1% precip
Tonight
66°F
Mostly Clear1% precip
Monday
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Monday Night
66°F
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News in Pleasant Hill
Contra Costa County Government
August 262026 Contra Costa County Block Party
Thanks for attending this year’s 2026 County Block Party, in collaboration with Supervisor Ken Carlson and the City of Pleasant Hill.
EventsIn and around Pleasant Hill
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Pleasant Hill by the numbers
Population
34,781Population figure, 2020
Households & income
- Area
- 7.08 sq mi (18.32 km²), 0 sq mi water
- Median age
- 42
- Households
- 13,258
- Persons per household
- 2.5
- Median household income
- $145,029
- Median house value
- $1,077,100
Municipal office
- Office
- MAYOR
- Address
- 100 GREGORY LN, PLEASANT HILL, CA 94523