Butler County, Iowa
Voting in Butler County, Iowa? Find registration links, ID rules, early and absentee voting options and your sample ballot here. Home to about 14,200 people, Butler County ranks 57th in population among Iowa's 99 counties. In Iowa, the county auditor is the county's commissioner of elections and handles registration, absentee ballots and polling places.
Next Election
June 6, 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; you can also register in person, including on Election Day.
Why Voting Matters
In Butler County, the people who show up to vote decide who represents everyone. The next election for Butler County voters is Iowa's primary election on June 6, 2028; local elections can come sooner, so check your local election office. Many Butler County jobs are in manufacturing and health care, so decisions about manufacturing jobs and health care costs hit close to home.
About 8,030 people voted for president in Butler County in 2024 (about the same as the 8,100 cast in 2020). That equals roughly 71% of the county's estimated 11,200 adults, above the statewide rate of about 65%.
Put another way, about 3,210 adults in Butler County sat that election out. Not all of them can vote, but if even 5% of them did, that would be roughly 160 more ballots, often more than the margin in races for local councils, school boards, the legislature or Congress.
Butler County is rural, with about 24 people per square mile across 580 square miles, so every vote carries extra weight in local races. The county is home to about 0.4% of Iowa's population.
ZIP codes in or partly in Butler County include 50433, 50601, 50602, 50604, 50605, 50608, 50611 and 50613, plus 10 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 Butler County to do the same.
Voter Assistance Resources
Who runs elections in Butler County? In Iowa, the county auditor is the county's commissioner of elections and handles registration, absentee ballots and polling places. For registration, polling places, early voting and absentee ballots, contact the Butler County auditor.
Direct link, Iowa Secretary of State county auditor contact page:
https://sos.iowa.gov/elections/auditors/auditor.asp?CountyID=12&btnGo=Go
Statewide directory, Iowa Secretary of State's county auditor list:
https://sos.iowa.gov/elections/voterinformation/index.html
See your sample ballot. Iowa Secretary of State general election page (sample ballots come from your county auditor):
https://sos.iowa.gov/general-election
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 Butler 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 Iowa, Iowa's Protection and Advocacy agency, at (800) 779-2502. 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 Iowa 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 Butler 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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