County of Alameda, CA - Government

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 inco

rporated 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.

County offices will be closed Friday, June 19, for the Juneteenth holiday.
06/12/2026

County offices will be closed Friday, June 19, for the Juneteenth holiday.

Be prepared.
06/10/2026

Be prepared.

AC Alert: Alameda County Red Flag Warning for Parts of Alameda County from Wednesday 06-10-2026 11pm until Thursday 06-11-2026 9am. Wildfires can start easily and spread rapidly. PREPARE a go bag in case of evacuations. AVOID outdoor activities that can cause sparks. STAY AWARE. NO EVACUATION is required at this time. Times and locations may change. For most updated info go to https://www.weather.gov/mtr

Please click here for all current Watches, Warnings or Advisories for Alameda County from the National Weather Service.

For more information or translation please visit ACalert.org | Para más información o para obtener traducción, visite ACalert.org.

If you are a voter in Congressional District 14, be sure to vote on June 16.
06/08/2026

If you are a voter in Congressional District 14, be sure to vote on June 16.

Yes, another election!

There are seven vote centers open today for early voting in the June 16, 2026 Congressional District 14 Special Primary Election. Check out our website or refer to your voter information guide to view the hours and locations. This is a SEPARATE election from the June 2, 2026 Direct Primary, and only voters in District 14 will receive a ballot. Vote early, Alameda County!

Be sure to vote today!
06/02/2026

Be sure to vote today!

Today’s voting options are…

Official Ballot Drop Box? Check.
Vote Centers open? Check.
Vote by Mail*? Check!

No matter how or when you choose to vote, you have until 8:00 p.m. to get in those ballots. We have 66 Official Ballot Drop Boxes and 100 Vote Centers available to you in Alameda County for your voting needs. Don’t delay, vote today!
*(postmarked by 8:00 p.m.)

Be sure to vote!
05/26/2026

Be sure to vote!

Do you want to vote in person?

Do you want a chance to ask questions, get assistance, or feel the civic spirit at a Vote Center?

Do you want to make your voice heard in the June 2, 2026, Direct Primary Election?

Well, you’re in luck! 11-Day Vote Centers are now OPEN! Visit us to vote in person, update your registration, or even request a new ballot.

It’s time to fulfill your civic duty, let’s all get out there and vote! Visit our website to find your nearest Vote Center’s hours and location.

Alameda County offices are closed today, Monday, May 25, in observance of Memorial Day.
05/25/2026

Alameda County offices are closed today, Monday, May 25, in observance of Memorial Day.

Great tips for this weekend.
05/22/2026

Great tips for this weekend.

Memorial Day weekend is here, Alameda County! Whether you’re grilling, hitting the water, road-tripping, or soaking up the sunshine, make safety part of the plan.

• Grill smart and keep flames away from dry grass
• Keep an eye on kids near water and wear life jackets
• Pack your patience for holiday traffic and drive alert
• Bring water, stay cool, and take breaks from the heat
• Fireworks are illegal in Alameda County. Skip the sparks and help prevent fires this weekend.

Have fun, stay safe, and enjoy the long weekend, Alameda County.

¡Ya está aquí el fin de semana del Memorial Day, condado de Alameda! Tanto si vas a hacer una barbacoa, a disfrutar del agua, a dar una vuelta en coche o a tomar el sol, incluye la seguridad en tus planes.

• Haz barbacoas con precaución y mantén las llamas alejadas de la hierba seca.
• Vigila a los niños cerca del agua y haz que lleven chalecos salvavidas.
• Armaos de paciencia para el tráfico festivo y conduce con precaución.
• Lleva agua, mantente fresco y descansa del calor.
• Los fuegos artificiales son ilegales en el condado de Alameda. Evita las chispas y ayuda a prevenir incendios este fin de semana.

Diviértete, mantente a salvo y disfruta del fin de semana largo, condado de Alameda.

Although the Registrar of Voters office will be closed Monday, vote centers will remain open so you can vote early. You ...
05/22/2026

Although the Registrar of Voters office will be closed Monday, vote centers will remain open so you can vote early. You can also cast your ballot at numerous Ballot Drop Stop locations around the County. Be sure to vote!

Our office will be closed Monday, May 25th, 2026, in observance of Memorial Day. Vote centers will remain open.

You can vote early.
05/19/2026

You can vote early.

Alameda County offices will be closed Monday, May 25, in observance of Memorial Day.
05/19/2026

Alameda County offices will be closed Monday, May 25, in observance of Memorial Day.

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

Website

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