Illinois 115th State House District
Akashic| Donald Trump ✓Republican | 70.6% | 38,559 |
|---|---|---|
| Kamala HarrisDemocratic | 27.3% | 14,895 |
| Robert F. Kennedy Jr.Independent | 2.1% | 1,145 |
County-level results (6 counties) — table
| County | Winner | Margin |
|---|---|---|
| Jackson County, IL | Democratic | D+3.5 |
| Monroe County, IL | Republican | R+36.3 |
| Perry County, IL | Republican | R+51.9 |
| Randolph County, IL | Republican | R+50.0 |
| St. Clair County, IL | Democratic | D+7.8 |
| Washington County, IL | Republican | R+57.2 |
| Year | Won | Democratic | Republican | Other | Margin | Total |
|---|---|---|---|---|---|---|
| R | 27.3%Harris14,895 | 70.6%Trump38,559 | 2.1%Kennedy1,145 | 54,599 | ||
| R | 27.9%Biden16,128 | 70.3%Trump40,616 | 1.8%Jorgensen1,018 | 57,762 | ||
| R | 26.6%Clinton14,568 | 67.7%Trump37,076 | 5.7%Johnson3,136 | 54,780 | ||
| R | 39.1%Obama19,847 | 60.9%Romney30,977 | 0.0% | 50,824 | ||
| R | 45.9%Obama25,387 | 51.6%McCain28,575 | 2.5%Nader1,377 | 55,339 |
| Year | Margin (D minus R) |
|---|---|
| 2008 | −5.8% |
| 2012 | −21.9% |
| 2016 | −41.1% |
| 2020 | −42.4% |
| 2024 | −43.3% |
State legislative officeholder from OpenStates nightly current-legislator data.
District 115 sits in heavily Republican downstate Illinois, where the 2024 presidential margin of R+18.9 reflects a rural electorate that has shifted sharply away from statewide Democratic trends over the past two decades.
Across the recorded series it reached a Republican high of 43.3 points in 2024. Between 2020 and 2024 the district moved 0.9 points toward the Republican candidate; the 2024 margin was 43.3 points.
A population of 108,630, a 88% non-Hispanic-white share, and a median household income of $74,599 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 110 and State House District 100.
The state-house districts whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →
Illinois 115th State House District. Akashic. https://akashic.app/sld-lower/17115/. Accessed May 20, 2026. License: CC BY 4.0.