Mason County, Illinois
Everything a Mason County, Illinois voter needs in one place: registration, voter ID, absentee and early voting, and your sample ballot. Home to about 12,500 people, Mason County ranks 82nd in population among Illinois's 102 counties. In Illinois, elections are run by local election authorities: usually the county clerk, or a board of election commissioners in some cities and counties.
Next Election
March 21, 2028
Voter Portal
Register Online
What's On My Ballot?
ID Requirements
Absentee / Early Voting
Registration Deadline
Register by mail at least 28 days before an election or online until 16 days before; grace-period and same-day registration are also available in person through Election Day.
Why Voting Matters
Every eligible adult in Mason County, Illinois holds the same power on Election Day: one vote that counts exactly as much as anyone else's. The next election for Mason County voters is Illinois's general primary on March 21, 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.
In the 2024 presidential election, about 6,370 ballots were cast in Mason County, down about 6% from 6,770 in 2020. With roughly 10,100 adults living in the county, that is around 63% of adult residents, above the statewide rate of about 56%.
Put another way, about 3,760 adults in Mason County sat that election out. Not all of them can vote, but if even 5% of them did, that would be roughly 188 more ballots, often more than the margin in races for local councils, school boards, the legislature or Congress.
Covering about 539 square miles with roughly 23 people per square mile, Mason County is the kind of rural community where a few dozen votes can settle a local election.
ZIP codes in or partly in Mason County include 61532, 61534, 61546, 61567, 62617, 62627, 62633 and 62644, plus 4 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 Mason County to do the same.
Voter Assistance Resources
Questions about voting in Mason County? In Illinois, elections are run by local election authorities: usually the county clerk, or a board of election commissioners in some cities and counties. For registration, polling places, early voting and absentee ballots, contact the Mason County election authority (county clerk or board of election commissioners).
Statewide directory, Illinois State Board of Elections' election authorities list:
https://www.elections.il.gov/electionoperations/ElectionAuthorities.aspx
See your sample ballot. Illinois election authorities list (your local election authority posts sample ballots):
https://www.elections.il.gov/electionoperations/ElectionAuthorities.aspx
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 Mason 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 Equip for Equality, Illinois's Protection and Advocacy agency, at (800) 537-2632. 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 Illinois 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 Mason 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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