| Donald Trump ✓Republican | 55.6% | 2,012 |
|---|---|---|
| Kamala HarrisDemocratic | 40.3% | 1,459 |
| OtherAll other candidates | 4.1% | 148 |
| Year | Margin (D minus R) |
|---|---|
| 2008 | −27.5% |
| 2012 | −22.1% |
| 2016 | −24.4% |
| 2020 | −13.0% |
| 2024 | −15.3% |
| Year | Won | Democratic | Republican | Other | Margin | Total |
|---|---|---|---|---|---|---|
| R | 40.3%Harris1,459 | 55.6%Trump2,012 | 4.1% | 3,619 | ||
| R | 41.3%Biden1,655 | 54.3%Trump2,176 | 4.5%incl. Jorgensen | 4,010 | ||
| R | 31.7%Clinton1,077 | 56.0%Trump1,906 | 12.3%incl. Johnson | 3,401 | ||
| R | 38.9%Obama1,209 | 61.1%Romney1,895 | 0.0% | 3,104 | ||
| R | 34.6%Obama1,397 | 62.2%McCain2,509 | 3.2% | 4,037 |
Demographics
Demographic Profile
Key indicators compared across containing geographies
| Indicator | OntarioCity | OregonState | United StatesNation |
|---|---|---|---|
| Race & Ethnicity | |||
| White | 62.7% | 74.6% | 61.0% |
| Black | 0.7% | 1.9% | 12.2% |
| Asian | 2.0% | 4.5% | 6.0% |
| Two or more races | 23.9% | 12.3% | 12.6% |
| Other race | 10.7% | 6.7% | 8.2% |
| Hispanic or Latino | 45.4% | 14.7% | 19.3% |
| Income & Age | |||
| Median household income | $46,308 | $83,011 | $84,427 |
| Poverty rate | 21.0% | 12.0% | 12.5% |
| Median age | 35.2 | 40.6 | 39.1 |
| Age 18–24 | 9.1% | 8.5% | 9.2% |
| Age 65 and older | 17.2% | 18.9% | 17.2% |
| Education & Language | |||
| Bachelor's degree or higher (25+) | 15.2% | 36.7% | 35.6% |
| Speaks a non-English language at home | 21.1% | 15.3% | 22.3% |
| Spanish | 19.8% | 9.0% | 13.6% |
| Ancestry | |||
| Largest ancestry | German 10.1% | German 16.3% | German 12.5% |
| 2nd-largest ancestry | English 9.2% | English 14.1% | English 9.5% |
| 3rd-largest ancestry | Irish 7.2% | Irish 11.1% | Irish 9.4% |
| Religion | |||
| Catholic | 12.0%County context | 11.3% | 18.6% |
| Evangelical Protestant | 11.1%County context | 12.8% | 16.5% |
| Unaffiliated or unclaimed | 52.9%County context | 66.9% | 51.5% |
| Latter-day Saints | 16.2%County context | 3.5% | 2.0% |
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.
Ontario sits in the Pacific Northwest. In 2024 it voted Republican.
Across the recorded series it reached a Republican high of 27.5 points in 2008. Between 2020 and 2024 the city moved 2.3 points toward the Republican candidate; the 2024 margin was 15.3 points.
A population of 11,842, a 63% non-Hispanic-white share, and a median household income of $46,308 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 →
Ontario, Oregon. Akashic. https://akashic.app/city/4154900/. Accessed May 20, 2026. License: CC BY 4.0.