Explore Vallejo local geography, civic resources and voter guides, with dated official population and registration facts for Solano County.
At a glance: Vallejo is an incorporated city in Solano County. Population: 122,702 (California Department of Finance estimate as of January 1, 2026). Registered voters: 70,919 (California Secretary of State, as of September 4, 2026).
Vallejo occupies a strategic waterfront where the Napa River meets the Carquinez Strait and San Pablo Bay region. Mare Island, the downtown waterfront, and inland hillside neighborhoods reflect the city's naval, industrial, and residential history. Greater Vallejo Recreation District operates parks such as Blue Rock Springs and Dan Foley Park, making the district an important recreation contact distinct from City Hall. The JFK Library and downtown waterfront add further public resources. Vallejo incorporated on March 30, 1868. It is a charter city with a council-manager government, while some locally used recreation and transportation services are administered by separate public agencies.
No. Greater Vallejo Recreation District operates numerous parks, including Blue Rock Springs and Dan Foley Park.
Contact Greater Vallejo Recreation District and consult its park reservation guidance rather than assuming the city clerk handles bookings.
The Solano County Registrar of Voters publishes official election results; municipal nomination questions belong with the Vallejo city clerk.
70,919 (California Secretary of State, as of September 4, 2026).
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