Harrison County, Missouri
Harrison County, Missouri voter information: how to register, check your status, see your sample ballot and contact your local election office. Home to about 8,190 people, Harrison County ranks 98th 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
In Harrison County, the people who show up to vote decide who represents everyone. The next election for Harrison County voters is Missouri's state primary on August 8, 2028; local elections can come sooner, so check your local election office. Local work in retail and health care means debates over local businesses directly affect Harrison County families.
Harrison County voters cast about 3,840 ballots for president in 2024, about the same as the 3,830 cast in 2020. Compared with the county's roughly 6,340 adult residents, that works out to about 61%, close to the statewide rate of about 61%.
Put another way, about 2,500 adults in Harrison County sat that election out. Not all of them can vote, but if even 5% of them did, that would be roughly 125 more ballots, often more than the margin in races for local councils, school boards, the legislature or Congress.
Covering about 723 square miles with roughly 11 people per square mile, Harrison County is the kind of rural community where a few dozen votes can settle a local election. The county is home to about 0.1% of Missouri's population.
ZIP codes in or partly in Harrison County include 64424, 64426, 64442, 64456, 64458, 64467, 64471 and 64481, plus 5 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 Harrison County to join you.
Voter Assistance Resources
Who runs elections in Harrison 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 Harrison 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.
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 Harrison 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 Harrison 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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