Cassia County, Idaho
Cassia County, Idaho voter information: how to register, check your status, see your sample ballot and contact your local election office. Home to about 26,000 people, Cassia County ranks 16th 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 Cassia County, the people who show up to vote decide who represents everyone. The next election for Cassia County voters is Idaho's primary election on May 16, 2028; local elections can come sooner, so check your local election office. Many Cassia County jobs are in health care and manufacturing, so decisions about health care costs and manufacturing jobs hit close to home.
In the 2024 presidential election, about 9,560 ballots were cast in Cassia County, about the same as the 9,630 cast in 2020. With roughly 18,300 adults living in the county, that is around 52% of adult residents, below the statewide rate of about 59%.
Put another way, about 8,760 adults in Cassia County sat that election out. Not all of them can vote, but if even 5% of them did, that would be roughly 438 more ballots, often more than the margin in races for local councils, school boards, the legislature or Congress.
Covering about 2,566 square miles with roughly 10 people per square mile, Cassia County is the kind of rural community where a few dozen votes can settle a local election. The county is home to about 1.3% of Idaho's population.
ZIP codes in or partly in Cassia County include 83211, 83311, 83312, 83318, 83323, 83342, 83344 and 83346, plus 1 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 Cassia 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 Cassia 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.
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 Cassia 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 Cassia 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
Find volunteer opportunities, visit the voting resources page, or shop sustainable products.
Buy the book that led to the creation of this website: Peace is Active by Tom McCann
Share what you’re doing for peace on social media with #peaceisactive