| Donald Trump ✓Republican | 59.3% | 3,497 |
|---|---|---|
| Kamala HarrisDemocratic | 38.0% | 2,239 |
| OtherAll other candidates | 2.7% | 160 |
| Year | Margin (D minus R) |
|---|---|
| 2008 | −6.5% |
| 2012 | −23.1% |
| 2016 | −30.5% |
| 2020 | −22.2% |
| 2024 | −21.3% |
| Year | Won | Democratic | Republican | Other | Margin | Total |
|---|---|---|---|---|---|---|
| R | 38.0%Harris2,239 | 59.3%Trump3,497 | 2.7% | 5,896 | ||
| R | 37.6%Biden2,249 | 59.8%Trump3,578 | 2.6%incl. Jorgensen | 5,980 | ||
| R | 30.5%Clinton1,636 | 61.0%Trump3,270 | 8.5%incl. Johnson | 5,360 | ||
| R | 38.5%Obama1,718 | 61.5%Romney2,750 | 0.0% | 4,468 | ||
| R | 45.6%Obama2,142 | 52.1%McCain2,445 | 2.3% | 4,696 |
Demographics
Demographic Profile
Key indicators compared across containing geographies
| Indicator | TroyCity | IllinoisState | United StatesNation |
|---|---|---|---|
| Race & Ethnicity | |||
| White | 89.5% | 61.0% | 61.0% |
| Black | 1.3% | 13.6% | 12.2% |
| Asian | 0.7% | 6.0% | 6.0% |
| Two or more races | 7.0% | 10.9% | 12.6% |
| Other race | 1.6% | 8.6% | 8.2% |
| Hispanic or Latino | 3.6% | 18.8% | 19.3% |
| Income & Age | |||
| Median household income | $112,434 | $83,390 | $84,427 |
| Poverty rate | 2.0% | 11.8% | 12.5% |
| Median age | 35.2 | 39.1 | 39.1 |
| Age 18–24 | 8.8% | 9.1% | 9.2% |
| Age 65 and older | 18.6% | 16.9% | 17.2% |
| Education & Language | |||
| Bachelor's degree or higher (25+) | 31.0% | 37.9% | 35.6% |
| Speaks a non-English language at home | 3.6% | 24.1% | 22.3% |
| Spanish | 2.2% | 14.0% | 13.6% |
| Ancestry | |||
| Largest ancestry | German 26.6% | German 16.1% | German 12.5% |
| 2nd-largest ancestry | Irish 13.3% | Mexican 14.4% | Mexican 11.3% |
| 3rd-largest ancestry | English 13.1% | Irish 10.6% | English 9.5% |
| Religion | |||
| Catholic | 15.3%County context | 24.2% | 18.6% |
| Evangelical Protestant | 20.0%County context | 11.7% | 16.5% |
| Unaffiliated or unclaimed | 52.2%County context | 49.2% | 51.5% |
| Mainline Protestant | 7.5%County context | 5.3% | 5.2% |
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.
Troy sits in the Upper Midwest. In 2024 it voted Republican.
Across the recorded series it reached a Republican high of 30.5 points in 2016. Between 2020 and 2024 the city moved 0.9 points toward the Democratic candidate; the 2024 margin was 21.3 points.
A population of 11,647, a 90% non-Hispanic-white share, and a median household income of $112,434 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 →
Troy, Illinois. Akashic. https://akashic.app/city/1776199/. Accessed May 20, 2026. License: CC BY 4.0.