Johnson County, Kansas
Johnson County, Kansas voter information: how to register, check your status, see your sample ballot and contact your local election office. Home to about 632,000 people, Johnson County is the most populous of Kansas's 105 counties. In Kansas, the county clerk serves as county election officer, except in the four largest counties, which have appointed election commissioners.
Next Election
August 1, 2028
Voter Portal
Register Online
What's On My Ballot?
ID Requirements
Absentee / Early Voting
Registration Deadline
Register at least 21 days before an election.
Why Voting Matters
Every eligible adult in Johnson County, Kansas holds the same power on Election Day: one vote that counts exactly as much as anyone else's. The next election for Johnson County voters is Kansas's primary election on August 1, 2028; local elections can come sooner, so check your local election office. Local work in health care and retail means debates over health care costs directly affect Johnson County families.
About 344,000 people voted for president in Johnson County in 2024 (down about 2% from 349,000 in 2020). That equals roughly 70% of the county's estimated 491,000 adults, above the statewide rate of about 58%.
Around 147,000 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 7,340 extra Johnson County ballots, enough to change the result in many close contests.
Johnson County packs about 1,335 people into each square mile across 473 square miles, so a single precinct can hold thousands of voters. About 21% of all Kansas residents live here.
ZIP codes in or partly in Johnson County include 66013, 66018, 66021, 66025, 66030, 66031, 66051 and 66061, plus 38 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
Who runs elections in Johnson County? In Kansas, the county clerk serves as county election officer, except in the four largest counties, which have appointed election commissioners. For registration, polling places, early voting and absentee ballots, contact the Johnson County election office.
Statewide directory, Kansas Secretary of State's county election offices list:
https://sos.ks.gov/elections/county-election-offices.html
See your sample ballot. Kansas VoterView, which shows your sample ballot:
https://myvoteinfo.voteks.org/voterview
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 Johnson 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 Center of Kansas, Kansas's Protection and Advocacy agency, at (877) 776-1541. 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 Kansas 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 Johnson 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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