| Donald Trump ✓Republican | 66.8% | 1,829 |
|---|---|---|
| Kamala HarrisDemocratic | 31.0% | 849 |
| OtherAll other candidates | 2.2% | 61 |
| Year | Margin (D minus R) |
|---|---|
| 2008 | −1.7% |
| 2012 | −6.1% |
| 2016 | −25.1% |
| 2020 | −32.3% |
| 2024 | −35.8% |
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| R | 849 | 1,829 | 2,739 | ||
| R | 948 | 1,887 | 2,911 | ||
| R | 897 | 1,558 | 2,635 | ||
| R | 1,088 | 1,230 | 2,318 | ||
| R | 1,281 | 1,326 | 2,673 |
Demographics
Demographic Profile
Key indicators compared across containing geographies
| Indicator | WilmingtonCity | IllinoisState | United StatesNation |
|---|---|---|---|
| Race & Ethnicity | |||
| White | 89.2% | 61.0% | 61.0% |
| Black | 2.7% | 13.6% | 12.2% |
| Asian | 0.8% | 6.0% | 6.0% |
| Two or more races | 5.5% | 10.9% | 12.6% |
| Other race | 1.8% | 8.6% | 8.2% |
| Hispanic or Latino | 9.4% | 18.8% | 19.3% |
| Income & Age | |||
| Median household income | $66,154 | $83,390 | $84,427 |
| Poverty rate | 11.5% | 11.8% | 12.5% |
| Median age | 40.3 | 39.1 | 39.1 |
| Age 18–24 | 9.0% | 9.1% | 9.2% |
| Age 65 and older | 14.7% | 16.9% | 17.2% |
| Education & Language | |||
| Bachelor's degree or higher (25+) | 19.8% | 37.8% | 35.7% |
| Speaks a non-English language at home | 8.9% | 24.0% | 22.3% |
| Spanish | 5.4% | 14.0% | 13.6% |
| Other languages | 1.5% | 0.6% | 0.8% |
| Ancestry | |||
| Largest ancestry | German 16.5% | German 16.1% | German 12.5% |
| 2nd-largest ancestry | Irish 12.9% | Irish 10.6% | English 9.5% |
| 3rd-largest ancestry | Polish 10.4% | English 6.9% | Irish 9.4% |
| Religion | |||
| Catholic | 24.8%County context | 24.2% | 18.6% |
| Evangelical Protestant | 10.4%County context | 11.7% | 16.5% |
| Unaffiliated or unclaimed | 56.7%County context | 49.2% | 51.5% |
ACS values are survey estimates and may include margins of error.
Religion data may be available only at county or larger geographies. Sub-county values are labeled when inherited, modeled, or contextual.
Wilmington sits in the Upper Midwest. In 2024 it voted Republican.
Across the recorded series it reached a Republican high of 35.8 points in 2024. Between 2020 and 2024 the city moved 3.5 points toward the Republican candidate; the 2024 margin was 35.8 points.
A population of 5,494, a 89% non-Hispanic-white share, and a median household income of $66,154 describe the city.
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 →
Wilmington, Illinois. Akashic. https://akashic.app/city/1782101/. Accessed May 20, 2026. License: CC BY 4.0.