akashic
1876–2024
Ontario·Oregon

Ontario delivered R+15.3 in 2024.

20082024·5 elections
OR
Ontario
TrumpR+15.3
How it voted
Share of the 2024 vote
Donald TrumpRepublican55.6%2,012
Kamala HarrisDemocratic40.3%1,459
OtherAll other candidates4.1%148
D+60
R+60
1 counties, each filled by 2024 D-vs-R margin.
presidential history
Presidential margin, 2008–2024
Democratic minus Republican, by election
Presidential margin over timeDemocratic-minus-Republican presidential margin from 2008 to 2024. Most recent: −15.3% in 2024.−15.3%DR20082024
Presidential margin over time
YearMargin (D minus R)
2008−27.5%
2012−22.1%
2016−24.4%
2020−13.0%
2024−15.3%
DemocraticRepublican
Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024).
YearWonDemocraticRepublicanOtherMarginTotal
R
40.3%Harris1,459
55.6%Trump2,012
4.1%
−15.3%
3,619
R
41.3%Biden1,655
54.3%Trump2,176
4.5%incl. Jorgensen
−13.0%
4,010
R
31.7%Clinton1,077
56.0%Trump1,906
12.3%incl. Johnson
−24.4%
3,401
R
38.9%Obama1,209
61.1%Romney1,895
0.0%
−22.1%
3,104
R
34.6%Obama1,397
62.2%McCain2,509
3.2%
−27.5%
4,037

Demographics

Demographic profile

Demographic Profile

Key indicators compared across containing geographies

Demographic Profile. Key indicators compared across containing geographies. 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.
IndicatorOntarioCityOregonStateUnited StatesNation
Race & Ethnicity
White62.7%74.6%61.0%
Black0.7%1.9%12.2%
Asian2.0%4.5%6.0%
Two or more races23.9%12.3%12.6%
Other race10.7%6.7%8.2%
Hispanic or Latino45.4%14.7%19.3%
Income & Age
Median household income$46,308$83,011$84,427
Poverty rate21.0%12.0%12.5%
Median age35.240.639.1
Age 18–249.1%8.5%9.2%
Age 65 and older17.2%18.9%17.2%
Education & Language
Bachelor's degree or higher (25+)15.2%36.7%35.6%
Speaks a non-English language at home21.1%15.3%22.3%
Spanish19.8%9.0%13.6%
Ancestry
Largest ancestryGerman 10.1%German 16.3%German 12.5%
2nd-largest ancestryEnglish 9.2%English 14.1%English 9.5%
3rd-largest ancestryIrish 7.2%Irish 11.1%Irish 9.4%
Religion
Catholic12.0%County context11.3%18.6%
Evangelical Protestant11.1%County context12.8%16.5%
Unaffiliated or unclaimed52.9%County context66.9%51.5%
Latter-day Saints16.2%County context3.5%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.

2024 ACS
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
10.1%
English
9.2%
Irish
7.2%
American
3.6%
Scottish
2.2%
Italian
2.0%
French
1.2%
Source · American Community Survey 5-year estimates, 2024 release. Hispanic/Latino is an ethnicity that overlaps the race categories, so these shares can total more than 100%. Ancestry is a self-reported, multiple-response item; ancestry percentages do not sum to the parent race percentage.
2024 ACS
Language at home
Population aged 5 and older
78.9%
speak English only
Spanish19.8%
Other Indo-European0.4%
Other Asian & Pacific Island0.3%
Other languages0.3%
German or other West Germanic0.2%
Source · ACS 5-year estimates, 2024.
2020 religion census
Religious adherents
Adherents per capita by tradition
Latter-day Saints
16.2%
Catholic
12.0%
Evangelical Protestant
11.1%
Buddhist
4.2%
Other Christian
1.8%
Mainline Protestant
1.5%
Black Protestant
0.2%
Other faiths
0.1%
Unaffiliated or not counted52.9%
Source · 2020 US Religion Census. The unaffiliated-or-not-counted share is everyone not claimed as an adherent by any reporting body — uncounted congregations as well as the religiously unaffiliated.

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 →

Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Ontario, Oregon. Akashic. https://akashic.app/city/4154900/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0

Frequently asked questions

How did Ontario, Oregon vote in 2024?
In 2024, Ontario, Oregon voted Republican by 15.3 points (R+15.3), carried by the Republican candidate. Out of 3,619 votes cast, 1,459 went Democratic and 2,012 went Republican.
What is Ontario, Oregon's political typology?
Akashic places Ontario, Oregon in the "" typology. The typology is a data-driven cluster built from vote share, vote swing, race and ethnicity, income, language spoken at home, religion, and ancestry. Across 5 elections in the dataset, the city has voted Democratic 0 times, Republican 5 times, and other 0 times.
How many people live in Ontario, Oregon?
Ontario, Oregon has a population of 11,842 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Ontario, Oregon?
Median household income in Ontario, Oregon is $46,308 — below the national median of $80,734. The Oregon state median is $83,011.
What is the political history of Ontario, Oregon?
Akashic tracks 5 presidential elections in Ontario, Oregon from 2008 to 2024. Of those, 0 went Democratic and 5 went Republican. The city's typology — "" — captures where that record, its demographics, and its recent swing place it among American communities.