Colusa County, California
Voting in Colusa County, California? Find registration links, ID rules, early and absentee voting options and your sample ballot here. Home to about 22,100 people, Colusa County ranks 50th in population among California's 58 counties. In California, each county elections office, often called the registrar of voters, handles registration, mails ballots and publishes the county voter information guide with your sample ballot.
Next Election
March 7, 2028
Voter Portal
Register Online
What's On My Ballot?
ID Requirements
Absentee / Early Voting
Registration Deadline
Register online or by mail at least 15 days before an election; conditional same-day registration is available after the deadline.
Why Voting Matters
Voting is how Colusa County residents shape the decisions made in their name. The next election for Colusa County voters is California's presidential primary on March 7, 2028; local elections can come sooner, so check your local election office. With restaurants and hospitality and manufacturing among the county's biggest employers, issues like tourism and small businesses are decided by the officials voters choose.
In the 2024 presidential election, about 7,020 ballots were cast in Colusa County, down about 12% from 7,950 in 2020. With roughly 16,500 adults living in the county, that is around 43% of adult residents, below the statewide rate of about 51%.
Around 9,450 adults here did not vote for president. Some aren't eligible, yet the rest are untapped power: one more voter in every 20 of them would mean about 473 extra Colusa County ballots, enough to change the result in many close contests.
Colusa County is rural, with about 19 people per square mile across 1,151 square miles, so every vote carries extra weight in local races.
ZIP codes in or partly in Colusa County include 95645, 95912, 95932, 95939, 95950, 95955, 95957 and 95970, plus 3 more. Check that your registration is current, look up your sample ballot, and make a plan to vote. Then ask a friend or family member in Colusa County to do the same.
Voter Assistance Resources
Questions about voting in Colusa County? In California, each county elections office, often called the registrar of voters, handles registration, mails ballots and publishes the county voter information guide with your sample ballot. For registration, polling places, early voting and absentee ballots, contact the Colusa County elections office (registrar of voters).
Statewide directory, California Secretary of State's county elections offices list:
https://www.sos.ca.gov/elections/voting-resources/county-elections-offices
See your sample ballot. California county elections offices (your county mails and posts your sample ballot):
https://www.sos.ca.gov/elections/voting-resources/county-elections-offices
You can also preview a personalized ballot at Vote411.org.
To ask a question or report a problem at the polls, call or text Election Protection at 866-OUR-VOTE (866-687-8683), a free nonpartisan hotline. For help in Spanish call 888-VE-Y-VOTA (888-839-8682); for Asian languages call 888-API-VOTE (888-274-8683).
Voters with disabilities in Colusa County can ask for an accessible voting machine, curbside voting where offered, and help from a person of their choice. If you run into barriers, contact Disability Rights California, California's Protection and Advocacy agency, at (888) 569-7955. VoteRiders (844-338-8743) offers free help with voter ID.
Need a ride? Many local transit agencies and ride services offer free or discounted rides to the polls on Election Day, so check what is available before the next election. See our California voter page for statewide options. Details can change, so confirm with the official election office.
Military and overseas voters can get help from the Federal Voting Assistance Program at 1-800-438-VOTE (8683) or fvap.gov.
Sign up to be an election worker
Election workers (often called poll workers) keep voting running smoothly in Colusa County. Most are paid for their time, get free training, and help their neighbors cast their ballots. You can work a full day, a shorter shift, or help before Election Day. County and municipal election offices recruit and train their own workers, and the EAC's Help America Vote page links to yours. Find out how to sign up:
https://www.eac.gov/help-america-vote
Take the Next Step
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