Bonneville County, Idaho
Your guide to voting in Bonneville County, Idaho: registration, sample ballots, ID requirements and where to get local help. Home to about 134,000 people, Bonneville County ranks 4th in population among Idaho's 44 counties. In Idaho, the county clerk handles voter registration, absentee ballots and polling places.
Next Election
May 16, 2028
Voter Portal
Register Online
What's On My Ballot?
ID Requirements
Absentee / Early Voting
Registration Deadline
Register online or by mail before the pre-registration deadline for each election; Election Day registration is available in person with ID and proof of residence.
Why Voting Matters
In Bonneville County, the people who show up to vote decide who represents everyone. The next election for Bonneville County voters is Idaho's primary election on May 16, 2028; local elections can come sooner, so check your local election office. Many Bonneville County jobs are in health care and professional and technical services, so decisions about health care costs and broadband and innovation hit close to home.
In the 2024 presidential election, about 56,400 ballots were cast in Bonneville County, up about 4% from 54,000 in 2020. With roughly 95,700 adults living in the county, that is around 59% of adult residents, close to the statewide rate of about 59%.
That means roughly 39,300 adult residents did not cast a presidential ballot. Some are not eligible, but many are, and that is a lot of untapped power. If just one in 20 of them voted, Bonneville County would add about 1,960 voices, more than enough to decide a close local race.
Bonneville County spans about 1,866 square miles of small towns and countryside, averaging roughly 72 people per square mile. The county is home to about 6.7% of Idaho's population.
ZIP codes in or partly in Bonneville County include 83274, 83285, 83401, 83402, 83403, 83404, 83405 and 83406, plus 7 more. Take two minutes to confirm your registration, preview your ballot with the links on this page, and decide when and how you will vote. Bring a neighbor along.
Voter Assistance Resources
Questions about voting in Bonneville County? In Idaho, the county clerk handles voter registration, absentee ballots and polling places. For registration, polling places, early voting and absentee ballots, contact the Bonneville County clerk.
Statewide directory, VoteIdaho's Find Your County Clerk page:
https://voteidaho.gov/county-clerk/
See your sample ballot. VoteIdaho's What's On the Ballot page:
https://voteidaho.gov/on-the-ballots/
You can also preview a personalized ballot at Vote411.org.
Free, nonpartisan help is available before and on every Election Day: call or text the Election Protection hotline at 866-OUR-VOTE (866-687-8683). Spanish: 888-VE-Y-VOTA (888-839-8682). Asian languages: 888-API-VOTE (888-274-8683).
Voters with disabilities in Bonneville 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 Idaho, Idaho's Protection and Advocacy agency, at (208) 336-5353. 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 Idaho 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 Bonneville 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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