Explore Pittsburg local geography, civic resources and voter guides, with dated official population and registration facts for Contra Costa County.
At a glance: Pittsburg is an incorporated city in Contra Costa County. Population: 76,484 (California Department of Finance estimate as of January 1, 2026). Registered voters: 42,155 (California Secretary of State, as of September 4, 2026).
Pittsburg occupies the southern shore of Suisun Bay near the western Delta. Its Old Town waterfront, industrial shoreline, and inland residential areas reflect a city oriented both toward the water and the Highway 4 corridor. The municipal Pittsburg Marina supports boating and fishing access near Old Town. Its public launch facilities and marina services provide a practical connection to the estuary rather than simply a waterfront view. Pittsburg incorporated on June 25, 1903. It is a general-law city with council-manager government.
Yes. The city operates Pittsburg Marina and publishes launch-ramp and marina-service information.
No. The marina page distinguishes service hours; check the current notices or contact the marina before traveling.
Use Contra Costa County Elections for the locations and instructions applicable to your registered address.
42,155 (California Secretary of State, as of September 4, 2026).
CA Slates began with shared voter guides in 2012 and expanded into its current publication family and connected program.