County of Alameda, CA - Government

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County of Alameda, CA - Government "The Bright Side of the Bay!" Alameda County was established in 1853. During the same time period, California’s population rose 10%.

The County was created from the territory of two counties created in 1850: Contra Costa and Santa Clara. It was given the local name for the region, Alameda, which translated loosely as “a grove of poplars.” The County enjoys a varied geography ranging from urban marinas to rolling open spaces to hillside lakes and streams. Alameda is the seventh most populous county in California, and has 14 incorporated cities and several unincorporated communities. The total population is estimated to be 1,510,271 as of April 2010, a 4.6% increase from April 2000. Oakland is the seat of County government and the largest city.

Create emergency plans to help your business continue operating during disruptions. https://direc.to/owUy
10/20/2026

Create emergency plans to help your business continue operating during disruptions. https://direc.to/owUy

Follow Alameda County Registrar of Voters for official information related to Alameda County elections and voting.
10/13/2026

Follow Alameda County Registrar of Voters for official information related to Alameda County elections and voting.

Heads up, Alameda County Voters! There's an election on November 3, 2026. Here's some important dates this month for you to keep in mind.

Be sure to vote!
10/13/2026

Be sure to vote!

Early voting has begun! All Official 24-Hour Ballot Drop Boxes are open. You should be receiving your Vote by Mail Ballot soon.

We encourage you to drop off your ballot at one of our drop boxes so it can be brought directly to our office. Our election team collects them directly, efficiently, and safely.

Vote early, Alameda County!

https://acvote.alamedacountyca.gov/GO

Address

1221 Oak Street, Suite 555
Oakland, CA
94612

Opening Hours

Monday 8:30am - 5:30pm
Tuesday 8:30am - 5:30pm
Wednesday 8:30am - 5:30pm
Thursday 8:30am - 5:30pm
Friday 8:30am - 5:30pm

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