Explore Concord local geography, civic resources and voter guides, with dated official population and registration facts for Contra Costa County.
At a glance: Concord is an incorporated city in Contra Costa County. Population: 122,494 (California Department of Finance estimate as of January 1, 2026). Registered voters: 73,277 (California Secretary of State, as of September 4, 2026).
Concord spreads across central Contra Costa County, with an established downtown around Todos Santos Plaza and neighborhoods extending toward Lime Ridge. Its setting combines a valley-floor commercial center with access to foothill open space. Todos Santos Plaza supplies a landscaped downtown commons with trees, benches, picnic tables, and a children's play area. Markham Nature Park offers a quieter garden setting, while Concord Community Pool and Lime Ridge trails broaden the city's recreation resources. The California Secretary of State's roster records Concord's incorporation on February 9, 1905. Concord is a general-law city using council-manager government.
It occupies the downtown block bounded by Salvio Street, Willow Pass Road, Grant Street, and Mount Diablo Street.
The city's Outdoor Spaces page links to park listings, group picnic reservations, and park rules.
Use Contra Costa County Elections rather than relying on an old city calendar or historical directory.
73,277 (California Secretary of State, as of September 4, 2026).
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