| Donald Trump ✓Republican | 52.8% | 16,927 |
|---|---|---|
| Kamala HarrisDemocratic | 45.6% | 14,619 |
| OtherAll other candidates | 1.6% | 523 |
| Year | Margin (D minus R) |
|---|---|
| 2008 | −4.3% |
| 2012 | −15.9% |
| 2016 | −21.8% |
| 2020 | −10.7% |
| 2024 | −7.2% |
| Year | Won | Democratic | Republican | Other | Margin | Total |
|---|---|---|---|---|---|---|
| R | 45.6%Harris14,619 | 52.8%Trump16,927 | 1.6% | 32,069 | ||
| R | 43.6%Biden14,475 | 54.3%Trump18,044 | 2.1%incl. Jorgensen | 33,210 | ||
| R | 36.2%Clinton11,321 | 58.0%Trump18,130 | 5.7%incl. Johnson | 31,233 | ||
| R | 42.0%Obama12,293 | 58.0%Romney16,950 | 0.0% | 29,243 | ||
| R | 47.3%Obama14,157 | 51.6%McCain15,453 | 1.1% | 29,926 |
Demographics
Demographic Profile
Key indicators compared across containing geographies
| Indicator | St. PetersCity | MissouriState | United StatesNation |
|---|---|---|---|
| Race & Ethnicity | |||
| White | 85.9% | 77.5% | 61.0% |
| Black | 4.8% | 11.0% | 12.2% |
| Asian | 2.6% | 2.1% | 6.0% |
| Two or more races | 5.6% | 7.1% | 12.6% |
| Other race | 1.0% | 2.3% | 8.2% |
| Hispanic or Latino | 2.9% | 5.2% | 19.3% |
| Income & Age | |||
| Median household income | $91,637 | $70,702 | $84,427 |
| Poverty rate | 5.7% | 12.6% | 12.5% |
| Median age | 41 | 39.2 | 39.1 |
| Age 18–24 | 8.2% | 9.2% | 9.2% |
| Age 65 and older | 17.0% | 17.9% | 17.2% |
| Education & Language | |||
| Bachelor's degree or higher (25+) | 42.7% | 32.4% | 35.6% |
| Speaks a non-English language at home | 5.8% | 6.7% | 22.3% |
| Spanish | 2.1% | 2.9% | 13.6% |
| Ancestry | |||
| Largest ancestry | German 31.3% | German 21.3% | German 12.5% |
| 2nd-largest ancestry | Irish 16.1% | English 11.9% | Mexican 11.3% |
| 3rd-largest ancestry | English 12.6% | Irish 11.8% | English 9.5% |
| Religion | |||
| Catholic | 27.0%County context | 12.5% | 18.6% |
| Evangelical Protestant | 14.5%County context | 24.1% | 16.5% |
| Unaffiliated or unclaimed | 50.3%County context | 51.7% | 51.5% |
| Mainline Protestant | 5.9%County context | 5.7% | 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.
St. Peters sits in the Border South. In 2024 it voted Republican.
Across the recorded series it reached a Republican high of 21.8 points in 2016. Between 2020 and 2024 the city moved 3.5 points toward the Democratic candidate; the 2024 margin was 7.2 points.
A population of 59,092, a 86% non-Hispanic-white share, and a median household income of $91,637 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 →
St. Peters, Missouri. Akashic. https://akashic.app/city/2965126/. Accessed May 20, 2026. License: CC BY 4.0.