Marshall County, Iowa
Marshall County, Iowa voter information: how to register, check your status, see your sample ballot and contact your local election office. Home to about 40,400 people, Marshall County ranks 15th 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
Every eligible adult in Marshall County, Iowa holds the same power on Election Day: one vote that counts exactly as much as anyone else's. The next election for Marshall County voters is Iowa's primary election on June 6, 2028; local elections can come sooner, so check your local election office. Many Marshall County jobs are in manufacturing and retail, so decisions about manufacturing jobs and local businesses hit close to home.
In the 2024 presidential election, about 17,200 ballots were cast in Marshall County, down about 5% from 18,100 in 2020. With roughly 30,800 adults living in the county, that is around 56% of adult residents, below the statewide rate of about 65%.
That means roughly 13,600 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, Marshall County would add about 680 voices, more than enough to decide a close local race.
With about 71 residents per square mile over 573 square miles, Marshall County is a place where neighbors often know their local officials. The county is home to about 1.2% of Iowa's population.
ZIP codes in or partly in Marshall County include 50005, 50028, 50051, 50055, 50078, 50106, 50120 and 50141, plus 14 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 Marshall County to do the same.
Voter Assistance Resources
Who runs elections in Marshall 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 Marshall County auditor.
Direct link, Iowa Secretary of State county auditor contact page:
https://sos.iowa.gov/elections/auditors/auditor.asp?CountyID=64&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 Marshall 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 Marshall 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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