County record · FIPS 17111
McHenry County, IL
A joined view of reported 2024 election administration and the 2020–2024 American Community Survey profile for Illinois.
Population312,591ACS 2020–2024
Registered voters239,261100% jurisdiction coverage
Voters163,920100% jurisdiction coverage
Registered turnout68.51%Reported voters / registration
Ballot administration
Mail-ballot record
| Stage | Reported ballots | Jurisdiction coverage |
|---|---|---|
| Transmitted | 35,723 | 100% |
| Returned | 29,420 | 100% |
| Counted | 29,094 | 100% |
| Rejected | 326 | 100% |
Return rate82.36%
Rejection rate1.11%
A blank means the source did not provide enough information. It does not mean zero ballots.
Administrative capacity
Election infrastructure
Polling places106100% coverage
Poll workers842100% coverage
Drop boxes5100% coverage
Provisional ballots cast737100% coverage
Provisional acceptance92.67%Counted / cast where reported
Cross-state twin
McHenry County, IL ↔ Anoka County, MN
81.4% profile similarityPopulation312,591370,349
Median household income$104,802$101,869
Poverty6.23%7.02%
No vehicle3.47%4.65%
The closest profile among counties in other states. Similarity uses seven ACS measures and does not include vote choice.
Reported detail
Mail rejection reasons
| Reason | Ballots |
|---|---|
| Signature mismatch | 243 |
| Missing signature | 14 |
| Late | 3 |
| Deceased | 2 |