Union County, Iowa
Union County, Iowa voter information: how to register, check your status, see your sample ballot and contact your local election office. Home to about 12,000 people, Union County ranks 63rd 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
Why does voting matter in Union County? Because every eligible voter here has exactly the same power at the ballot box: one vote. The next election for Union County voters is Iowa's primary election on June 6, 2028; local elections can come sooner, so check your local election office. Many Union County jobs are in manufacturing and health care, so decisions about manufacturing jobs and health care costs hit close to home.
About 6,000 people voted for president in Union County in 2024 (down about 3% from 6,180 in 2020). That equals roughly 64% of the county's estimated 9,420 adults, close to the statewide rate of about 65%.
Around 3,420 adults here did not vote for president. Some aren't eligible, yet the rest are untapped power: one more voter in every 20 of them would mean about 171 extra Union County ballots, enough to change the result in many close contests.
Covering about 424 square miles with roughly 28 people per square mile, Union County is the kind of rural community where a few dozen votes can settle a local election. The county is home to about 0.4% of Iowa's population.
ZIP codes in or partly in Union County include 50074, 50149, 50174, 50254, 50801, 50830, 50831 and 50842, plus 3 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
Local election help in Union 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 Union County auditor.
Direct link, Iowa Secretary of State county auditor contact page:
https://sos.iowa.gov/elections/auditors/auditor.asp?CountyID=88&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 Union 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 Union 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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