Twin Falls County, Idaho
Everything a Twin Falls County, Idaho voter needs in one place: registration, voter ID, absentee and early voting, and your sample ballot. Home to about 96,500 people, Twin Falls County ranks 5th 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
Voting is how Twin Falls County residents shape the decisions made in their name. The next election for Twin Falls County voters is Idaho's primary election on May 16, 2028; local elections can come sooner, so check your local election office. Local work in health care and retail means debates over health care costs directly affect Twin Falls County families.
In the 2024 presidential election, about 37,400 ballots were cast in Twin Falls County, up about 2% from 36,700 in 2020. With roughly 71,700 adults living in the county, that is around 52% of adult residents, below the statewide rate of about 59%.
That means roughly 34,300 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, Twin Falls County would add about 1,720 voices, more than enough to decide a close local race.
Twin Falls County spans about 1,922 square miles of small towns and countryside, averaging roughly 50 people per square mile. The county is home to about 4.8% of Idaho's population.
ZIP codes in or partly in Twin Falls County include 83301, 83302, 83303, 83316, 83321, 83328, 83332 and 83334, plus 2 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
Who runs elections in Twin Falls 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 Twin Falls 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 Twin Falls 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 Twin Falls 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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