Johnson County, Illinois, elections, 2026
Johnson County, Illinois, is holding elections for local offices in 2026. Click the links below to learn more:
Click here to use Ballotpedia's sample ballot to find every election that Ballotpedia has on file for your address.
These pages do not provide election results. Contact your local election office to find results. You can contact us if you have any additional questions.
Click here to learn more about elections in Illinois in 2026. Click here for all elections by state and year.
County elections and candidates
March 17, 2026 (Primary)
Judicial elections and candidates
March 17, 2026 (Primary)
Special district elections and candidates
March 17, 2026 (Primary)
= candidate completed the Ballotpedia Candidate Connection survey.
Demographics
| Demographic Data for Johnson County, Illinois | ||
|---|---|---|
| Johnson County | Illinois | |
| Population | 13,308 | 12,812,508 |
| Land area (sq mi) | 343 | 55,512 |
| Race and ethnicity** | ||
| White | 88% | 69.8% |
| Black/African American | 10.5% | 14.1% |
| Asian | 0.4% | 5.6% |
| Native American | 0.1% | 0.3% |
| Pacific Islander | 0% | 0% |
| Other (single race) | 0.5% | 6% |
| Multiple | 0.5% | 4.2% |
| Hispanic/Latino | 3.1% | 17.2% |
| Education | ||
| High school graduation rate | 82.3% | 89.7% |
| College graduation rate | 16% | 35.5% |
| Income | ||
| Median household income | $55,363 | $68,428 |
| Persons below poverty level | 12.9% | 12% |
| Source: population provided by U.S. Census Bureau, "Decennial Census" (2020). Other figures provided by U.S. Census Bureau, "American Community Survey" (5-year estimates 2015-2020). | ||
| **Note: Percentages for race and ethnicity may add up to more than 100 percent because respondents may report more than one race and the Hispanic/Latino ethnicity may be selected in conjunction with any race. Read more about race and ethnicity in the census here. | ||
Presidential election results by county, 2016-2024
How a state's counties vote in a presidential election and the size of those counties can provide additional insights into election outcomes at other levels of government including statewide and congressional races. Below, four categories are used to describe each county's voting pattern over the 2016, 2020, and 2024 presidential elections: Solid, Trending, Battleground, and New. Click [show] on the table below for examples:
| County-level voting pattern categories | |||||||
|---|---|---|---|---|---|---|---|
| Democratic | |||||||
| Status | 2016 | 2020 | 2024 | ||||
| Solid Democratic | D | D | D | ||||
| Trending Democratic | R | D | D | ||||
| Battleground Democratic | D | R | D | ||||
| New Democratic | R | R | D | ||||
| Republican | |||||||
| Status | 2016 | 2020 | 2024 | ||||
| Solid Republican | R | R | R | ||||
| Trending Republican | D | R | R | ||||
| Battleground Republican | R | D | R | ||||
| New Republican | D | D | R | ||||
Following the 2024 presidential election, 72.8% of Illinoisans lived in one of the state's 12 Solid Democratic counties, which voted for the Democratic presidential candidate in every election from 2016 to 2024, and 24.7% lived in one of 88 Solid Republican counties. Overall, Illinois was Solid Democratic, having voted for Hillary Clinton (D) in 2016, Joe Biden (D) in 2020, and Kamala Harris (D) in 2024. Use the table below to view the total number of each type of county in Illinois following the 2024 election as well as the overall percentage of the state population located in each county type.
| Illinois county-level statistics, 2024 | |||||||
|---|---|---|---|---|---|---|---|
| Solid Democratic | 12 | 72.8% | |||||
| Solid Republican | 88 | 24.7% | |||||
| Trending Democratic | 2 | 2.5% | |||||
| Total voted Democratic | 14 | 75.3% | |||||
| Total voted Republican | 88 | 24.7% | |||||
Other counties in Illinois
Navigate to Illinois 2026 local election overviews:
Adams | Alexander | Bond | Boone | Brown | Bureau | Calhoun | Carroll | Cass | Champaign | Christian | Clark | Clay | Clinton | Coles | Cook | Crawford | Cumberland | DeKalb | De Witt | Douglas | DuPage | Edgar | Edwards | Effingham | Fayette | Ford | Franklin | Fulton | Gallatin | Greene | Grundy | Hamilton | Hancock | Hardin | Henderson | Henry | Iroquois | Jackson | Jasper | Jefferson | Jersey | Jo Daviess | Johnson | Kane | Kankakee | Kendall | Knox | Lake | LaSalle | Lawrence | Lee | Livingston | Logan | Macon | Macoupin | Madison | Marion | Marshall | Mason | Massac | McDonough | McHenry | McLean | Menard | Mercer | Monroe | Montgomery | Morgan | Moultrie | Ogle | Peoria | Perry | Piatt | Pike | Pope | Pulaski | Putnam | Randolph | Richland | Rock Island | Saline | Sangamon | Schuyler | Scott | Shelby | Stark | St. Clair | Stephenson | Tazewell | Union | Vermilion | Wabash | Warren | Washington | Wayne | White | Whiteside | Will | Williamson | Winnebago | Woodford
See also
2026 Elections
