Early voting locations in Martinez, California for November 3, 2026
- WhenMon, Oct 5 – Mon, Nov 2Started · 18 days left
- Where1 site in Martinez6 in all of Contra Costa County
- Hours11:00AM-6:00PMMost sites; see each site
- Election DayTue, Nov 37:00 a.m. to 8:00 p.m.
Find sites near me Find by ZIP code Election office
Martinez addresses are in Contra Costa County. Contra Costa County lists 6 early voting sites; 1 of them is in Martinez and listed here.
From the California Secretary of State's official list, checked October 14, 2026. Hours can change, so check before you go.
Martinez early voting sites (1)
- Elections Office
555 Escobar St, Martinez, CA 94553
October 5 - October 9: 8:00AM-5:00PM
October 12 - October 16: 8:00AM-5:00PM
October 19 - October 23: 8:00AM-5:00PM
October 26 - October 30: 8:00AM-5:00PM
October 31: 9:00AM-3:00PM
November 2: 8:00AM-5:00PM
Election Day: 7:00AM-8:00PM
Directions
Every early voting site in Contra Costa County (6) is on the Contra Costa County early voting page, with a ZIP code finder.
Contra Costa County elections office
Contra Costa County Elections Office
Office: 555 Escobar Street, Martinez, CA 94553
Mailing address: P.O. Box 271, Martinez, CA 94553
Phone: 925-335-7800
Regular office hours: 8 a.m. to 5 p.m.
California voting dates for Martinez voters
| Date | What |
|---|---|
| Mon, Oct 5 Ended | Ballots go out to all voters source |
| Mon, Oct 5 Started | Early voting opens source |
| Mon, Oct 19 | Last day to register source |
| Tue, Oct 27 | Last day to request a replacement ballot by mail source |
| Tue, Nov 3, 8:00 PM | Election Day: polls open 7:00 a.m. to 8:00 p.m. source |
| Tue, Nov 3, 8:00 PM | Register and vote the same day source |
| Tue, Nov 3, 8:00 PM | Return your ballot source |
Martinez voting questions
Where can I vote early in Martinez?
At the early voting site in Martinez on this page, from each county's official list. Contra Costa County lists 6 sites in all; see the Contra Costa County early voting page.
When does early voting start in Martinez?
Early voting in Martinez (Contra Costa County) started Monday, October 5, 2026 at the first sites to open. Some sites open later; each site's days are on this page.
When does early voting end in Martinez?
The last day of early voting in Martinez (Contra Costa County) is Monday, November 2, 2026. Election Day is Tuesday, November 3.
What are the early voting hours in Martinez?
Hours differ by site and day. The most common hours are 11:00AM-6:00PM. Check the site you plan to use before you go.
Who can vote early in Martinez?
Any registered voter in Martinez (Contra Costa County). In California you can vote at any early voting location in your county (vote centers in Voter’s Choice Act counties). Same-day voter registration is offered where marked.
What is the phone number of the election office for Martinez?
925-335-7800, the Contra Costa County Elections Office, 555 Escobar Street, Martinez, CA 94553.
Which county runs elections in Martinez?
Contra Costa County. Martinez voters register and vote with Contra Costa County.
More for Martinez voters
- California voting deadlines 2026: registration, mail ballots, early voting and Election Day.
- Contra Costa County early voting locations, every site in the county.
- Contra Costa County election office: address and phone.
- Who is on the California ballot, race by race.
- What's on my ballot and where do I vote, from your street address.
- Voting in every major U.S. city.
Other cities and towns in Contra Costa County: Concord, Antioch, Richmond, Alamo, Oakley, Pittsburg, Walnut Creek.
Sites, days and hours are Contra Costa County's own, copied from its official list (named above); office details are from the California Secretary of State, County Elections Offices (checked October 14, 2026). Dates are California's, each linked to its source. Call the office before you go.