Explore Pleasant Hill voter guides, local civic context and official resources for Contra Costa County campaigns, with dated population and registration facts.
At a glance: Pleasant Hill is an incorporated city in Contra Costa County. Population: 33,853 (California Department of Finance estimate as of January 1, 2026). Registered voters: 23,743 (California Secretary of State, as of September 4, 2026).
Pleasant Hill sits on the eastern edge of the Briones Hills in Contra Costa County. The county’s 2009 municipal service review describes an alluvial-plain setting neighboring Martinez, Concord, Walnut Creek and Lafayette. This combination of settled valley floor and western hills gives the city its own geographic identity within the central county, rather than making it interchangeable with nearby Concord or Walnut Creek. The same LAFCo review records incorporation on November 14, 1961, and describes a general-law city with council-manager government. The council’s policy decisions and the administration’s implementation responsibilities are distinct. For a local proposal, the adopted action, supporting staff report and relevant municipal department are more useful starting points than a countywide summary. Recreation has a separate institutional history here. The 2009 review identifies the Pleasant Hill Recreation and Park District as a recreation provider and discusses shared maintenance facilities. A park-district decision is not automatically a city-council decision, even where the facilities serve the same neighborhoods. That distinction matters when reading budgets, public notices and planning documents. The dated service review offers a way to understand municipal boundaries, service providers and the city’s relationship to neighboring jurisdictions. Its historical staffing and facility figures are not current operating guarantees. For an address-specific question, use the relevant city or district record; for election administration and voter registration, use the county’s official election resources.
Contra Costa LAFCo’s 2009 municipal review records November 14, 1961.
The official review places the city at the eastern edge of the Briones Hills, on an alluvial plain in central Contra Costa County.
Not necessarily. The historical review identifies the separate Pleasant Hill Recreation and Park District; confirm the responsible provider for the facility or decision.
The county review describes Pleasant Hill as neighboring Martinez, Concord, Walnut Creek and Lafayette on the central-county alluvial plain.
23,743 (California Secretary of State, as of September 4, 2026).
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