CONTRA COSTA COUNTY, CA — If you still have your ballot for the November 3 general election, you can return it at one of 43 official drop boxes across Contra Costa County.
The boxes are available around the clock and close at 8 p.m. sharp on Tuesday, November 3. That means your ballot needs to be in the box by the deadline, not on its way there.
Before dropping it off, place your completed ballot in its return envelope, seal it and sign the envelope.
Get more local news delivered to your inbox with the free 925 News newsletter.
Contra Costa County Ballot Drop Box Locations
Here’s the full list of drop boxes, organized by community:
Alamo
- Alamo Plaza Shopping Center: 190 Alamo Plaza
Antioch
- Antioch City Hall: 200 H St.
- Antioch Community Center: 4703 Lone Tree Way
Bay Point
- Ambrose Community Center: 3105 Willow Pass Road
Brentwood
- Balfour Village Safeway: 3110 Balfour Road
- Brentwood City Hall: 150 City Parkway
Clayton
- Clayton Library: 6125 Clayton Road
Concord
- Concord City Hall: 1950 Parkside Drive
- Monument Crisis Center: 1990 Market St.
Danville
- Danville Maintenance Service Center: 1000 Sherburne Hills Road
- Danville Park and Ride: 1000 Sycamore Valley Road
- Danville Town Offices: 500 La Gonda Way
Discovery Bay
- Discovery Bay Community Center: 1601 Discovery Bay Blvd.
El Cerrito
- El Cerrito City Hall: 10890 San Pablo Ave.
El Sobrante
- El Sobrante Library: 4191 Appian Way
Hercules
- Hercules Public Library: 109 Civic Drive
Kensington
- Kensington Community Center: 59 Arlington Ave.
Lafayette
- Lafayette School District Office: 3477 School St.
Martinez
- Contra Costa County Clerk Elections Building: 555 Escobar St.
- Central Contra Costa Sanitary District: 5019 Imhoff Place
- Contra Costa EHSD Administration: 40 Douglas Drive
Moraga
- Moraga Library: 1500 St. Marys Road
Oakley
- Oakley City Hall: 3231 Main St.
Orinda
- Orinda City Hall: 22 Orinda Way
Pinole
- Pinole City Hall: 2131 Pear St.
Pittsburg
- Los Medanos College: 2700 E. Leland Road
- Pittsburg Unified School District Office: 2000 Railroad Ave.
Pleasant Hill
- Diablo Valley College: 321 Golf Club Road
- Pleasant Hill City Hall: 100 Gregory Lane
- Pleasant Hill Library: 2 Monticello Ave.
- Pleasant Hill Public Services Center: 310 Civic Drive
Richmond
- Contra Costa County EHSD – Richmond: 1305 Macdonald Ave.
- North Richmond Center for Health: 1501 Fred Jackson Way
- Richmond City Hall: 450 Civic Center Plaza
- West County Wastewater District: 2910 Hilltop Drive
San Pablo
- Contra Costa College: 2600 Mission Bell Drive
- San Pablo City Hall: 1000 Gateway Ave.
San Ramon
- Alcosta Senior and Community Center: 9300 Alcosta Blvd.
- Dougherty Station Community Center: 17011 Bollinger Canyon Road
- San Ramon Community Center: 12501 Alcosta Blvd.
Walnut Creek
- Grace Presbyterian Church: 2100 Tice Valley Blvd.
- Walnut Creek Center for Community Arts: 111 N. Wiget Lane
- Walnut Creek City Hall: 1666 N. Main St.
Other Ways to Return Your Ballot
Voters can also return their completed vote-by-mail ballots at a polling place. Polls are open from 7 a.m. to 8 p.m. on Election Day.
If you plan to mail your ballot, it must be postmarked by November 3. Contra Costa County recommends taking it inside a post office and asking for a postmark.
Residents who missed the regular registration deadline can still register and vote in person through conditional voter registration at the county Elections Office or an Election Day polling place.
For more information, visit Contra Costa Elections or call 925-335-7800.
