Henry County, Missouri
Everything a Henry County, Missouri voter needs in one place: registration, voter ID, absentee and early voting, and your sample ballot. Home to about 22,600 people, Henry County ranks 51st in population among Missouri's 115 counties. In Missouri, elections are run by local election authorities: the county clerk in most counties, or a board of election commissioners in several cities and counties.
Next Election
August 8, 2028
Voter Portal
Register Online
What's On My Ballot?
ID Requirements
Absentee / Early Voting
Registration Deadline
Register by the fourth Wednesday before an election.
Why Voting Matters
Voting is how Henry County residents shape the decisions made in their name. The next election for Henry County voters is Missouri's state primary on August 8, 2028; local elections can come sooner, so check your local election office. With health care and retail among the county's biggest employers, issues like health care costs are decided by the officials voters choose.
Henry County voters cast about 10,900 ballots for president in 2024, about the same as the 10,800 cast in 2020. Compared with the county's roughly 18,000 adult residents, that works out to about 61%, close to the statewide rate of about 61%.
That means roughly 7,040 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, Henry County would add about 352 voices, more than enough to decide a close local race.
Henry County spans about 697 square miles of small towns and countryside, averaging roughly 32 people per square mile. The county is home to about 0.4% of Missouri's population.
ZIP codes in or partly in Henry County include 64724, 64726, 64733, 64735, 64739, 64740, 64761 and 64770, plus 3 more. Confirm your registration, read through your sample ballot before Election Day, and choose whether you will vote early, by mail or in person. Invite someone you know in Henry County to join you.
Voter Assistance Resources
Local election help in Henry County: In Missouri, elections are run by local election authorities: the county clerk in most counties, or a board of election commissioners in several cities and counties. For registration, polling places, early voting and absentee ballots, contact the Henry County local election authority (county clerk or board of election commissioners).
Statewide directory, Missouri Secretary of State elections division:
https://www.sos.mo.gov/elections/
See your sample ballot. Missouri Secretary of State elections division (voter lookup shows sample ballots):
https://www.sos.mo.gov/elections/
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 Henry 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 Missouri Protection & Advocacy, Missouri's Protection and Advocacy agency, at (573) 893-3333. 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 Missouri 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 Henry 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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