Gallatin County, Montana
Voting in Gallatin County, Montana? Find registration links, ID rules, early and absentee voting options and your sample ballot here. Home to about 127,000 people, Gallatin County ranks 2nd in population among Montana's 56 counties. In Montana, the county election administrator, usually the clerk and recorder, handles registration and absentee ballots.
Next Election
June 6, 2028
Voter Portal
Register Online
What's On My Ballot?
ID Requirements
Absentee / Early Voting
Registration Deadline
Register by mail at least 30 days before an election; late registration is available in person at your county election office through Election Day.
Why Voting Matters
In Gallatin County, the people who show up to vote decide who represents everyone. The next election for Gallatin County voters is Montana's primary on June 6, 2028; local elections can come sooner, so check your local election office. Local work in restaurants and hospitality and retail means debates over tourism and small businesses directly affect Gallatin County families.
Gallatin County voters cast about 69,900 ballots for president in 2024, down about 2% from 71,500 in 2020. Compared with the county's roughly 102,000 adult residents, that works out to about 68%, close to the statewide rate of about 66%.
Put another way, about 32,600 adults in Gallatin County sat that election out. Not all of them can vote, but if even 5% of them did, that would be roughly 1,630 more ballots, often more than the margin in races for local councils, school boards, the legislature or Congress.
Gallatin County spans about 2,605 square miles of small towns and countryside, averaging roughly 49 people per square mile. About 11% of all Montana residents live here.
ZIP codes in or partly in Gallatin County include 59086, 59714, 59715, 59716, 59717, 59718, 59719 and 59721, plus 7 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 Gallatin County to do the same.
Voter Assistance Resources
Questions about voting in Gallatin County? In Montana, the county election administrator, usually the clerk and recorder, handles registration and absentee ballots. For registration, polling places, early voting and absentee ballots, contact the Gallatin County election administrator.
Statewide directory, Montana Secretary of State election contacts:
https://sosmt.gov/elections/contact
See your sample ballot. Montana My Voter Page, which shows your sample ballot:
https://app.mt.gov/voterinfo/
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 Gallatin 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 Montana, Montana's Protection and Advocacy agency, at (406) 449-2344. 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 Montana 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 Gallatin 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
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