† Citizen voting-age population estimated for prior cycles; 2004 predates the ACS and is extrapolated. Source: ACS 5-year, table B05003.
——
D+60R+60
2 counties by 2024 margin · County returns · MIT Election Lab
People and households
Who lives here
Exact values for this place, its state, and the United States.
Race · ethnicity · ancestry
Communities and origins
GroupOntario, OR-IDUnited States
German12.2%12.5%
English11.3%9.5%
Irish8.5%9.4%
American4.3%5.3%
Italian2.5%4.8%
Scottish2.5%1.3%
Danish1.0%—
Norwegian0.7%—
Mexican24.7%11.3%
Spanish0.8%—
Salvadoran0.3%0.7%
Spaniard0.3%—
Japanese0.5%0.2%
Hispanic or Latino counts residents of any race; the race groups count only their non-Hispanic residents, so the groups are mutually exclusive and sum to 100%. Expand a row to see ancestries reported within that group.
Age and life stage
Measure
Ontario, OR-ID
United States
Median age
37.4
39.1
Age 18–24
7.8%
9.2%
Age 65 and older
18.4%
17.2%
Household economy
Measure
Ontario, OR-ID
United States
Median household income
$60,516
$84,427
Poverty rate
14.2%
12.5%
Bachelor's degree or higher (25+)
16.2%
35.6%
Languages at home
Measure
Ontario, OR-ID
United States
Speaks a non-English language at home
15.9%
22.3%
Spanish
14.7%
13.6%
Religious landscape
Measure
Ontario, OR-ID
United States
Catholic
13.4%
18.6%
Evangelical Protestant
10.6%
16.5%
Unclaimed / not counted
52.4%
51.5%
Latter-day Saints
17.2%
2.0%
American Community Survey 2024 5-year (CVAP, income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024 · 2020 U.S. Religion Census (ASARB) — congregational adherents; unclaimed is the residual not counted by congregations.
Ontario, OR-ID
presidential history
Presidential margin, 1892–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
1892
+3.0%
1896
+34.5%
1900
+0.8%
1904
−41.5%
1908
−17.5%
1912
+0.4%
1916
+6.4%
1920
−35.7%
1924
−28.3%
1928
−44.7%
1932
+10.1%
1936
+17.3%
1940
−7.1%
1944
−18.6%
1948
−16.3%
1952
−42.8%
1956
−25.7%
1960
−21.4%
1964
−4.8%
1968
−39.4%
1972
−46.3%
1976
−20.6%
1980
−41.2%
1984
−52.5%
1988
−34.1%
1992
−23.4%
1996
−29.6%
2000
−49.9%
2004
−52.3%
2008
−40.9%
2012
−42.4%
2016
−51.9%
2020
−50.3%
2024
−53.8%
DemocraticRepublican
34 presidential elections
Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024). Swing · margin change from the prior cycle. vs U.S. · margin relative to the national result that year.
Year
Won
Democratic
Republican
Other
Margin
Swing
vs U.S.
Total
R
21.8%Harris4,948
75.6%Trump17,168
2.6%
R+53.8
R+3.5
R+52.3
22,706
R
23.5%Biden5,421
73.8%Trump17,049
2.7%
R+50.3
D+1.5
R+54.8
23,097
R
19.6%Clinton3,753
71.5%Trump13,683
8.9%
R+51.9
R+9.5
R+54.0
19,139
R
27.3%Obama5,030
69.7%Romney12,855
3.1%
R+42.4
R+1.6
R+46.3
18,451
R
28.2%Obama5,364
69.0%McCain13,145
2.8%
R+40.9
D+11.5
R+48.1
19,046
R
23.3%Kerry4,425
75.6%Bush14,379
1.2%
R+52.3
R+2.5
R+49.9
19,027
R
23.1%Gore3,979
72.9%Bush12,585
4.0%
R+49.9
R+20.3
R+50.4
17,262
R
29.2%Clinton4,946
58.8%Dole9,946
11.9%
R+29.6
R+6.2
R+38.1
16,910
R
24.1%Clinton4,195
47.5%Bush8,269
28.4%
R+23.4
D+10.7
R+29.0
17,408
R
31.9%Dukakis4,865
66.0%Bush10,071
2.1%
R+34.1
D+18.4
R+26.4
15,252
R
23.4%Mondale4,021
75.9%Reagan13,046
0.7%
R+52.5
R+11.3
R+34.3
17,192
R
26.4%Carter4,765
67.6%Reagan12,213
6.1%
R+41.2
R+20.6
R+31.5
18,078
R
37.9%Carter5,702
58.5%Ford8,797
3.6%
R+20.6
D+25.7
R+22.7
15,033
R
21.2%McGovern2,983
67.5%Nixon9,485
11.2%
R+46.3
R+6.9
R+23.1
14,043
R
24.3%Humphrey3,237
63.7%Nixon8,479
12.0%
R+39.4
R+34.6
R+38.7
13,316
R
47.6%Johnson6,306
52.4%Goldwater6,941
0.1%
R+4.8
D+16.6
R+27.4
13,255
R
39.3%Kennedy5,514
60.7%Nixon8,515
0.0%
R+21.4
D+4.3
R+21.6
14,029
R
37.1%Stevenson4,918
62.9%Eisenhower8,323
0.0%
R+25.7
D+17.1
R+10.3
13,241
R
28.5%Stevenson3,736
71.2%Eisenhower9,350
0.3%
R+42.8
R+26.5
R+32.0
13,124
R
40.8%Truman4,067
57.1%Dewey5,695
2.2%
R+16.3
D+2.3
R+20.8
9,979
R
40.3%Roosevelt3,616
58.9%Dewey5,282
0.7%
R+18.6
R+11.4
R+26.1
8,963
R
46.1%Roosevelt4,748
53.3%Willkie5,483
0.6%
R+7.1
R+24.5
R+17.1
10,293
D
53.4%Roosevelt4,307
36.0%Landon2,909
10.6%
D+17.3
D+7.2
R+6.9
8,073
D
52.6%Roosevelt3,861
42.5%Hoover3,118
4.9%
D+10.1
D+54.9
R+7.7
7,341
R
26.8%Smith1,637
71.6%Hoover4,367
1.6%
R+44.7
R+16.5
R+27.3
6,103
R
21.7%Davis1,229
50.0%Coolidge2,831
28.3%
R+28.3
D+7.5
R+3.1
5,665
R
30.5%Cox1,860
66.2%Harding4,042
3.3%
R+35.7
R+42.2
R+9.6
6,104
D
48.8%Wilson1,937
42.4%Hughes1,682
8.8%
D+6.4
D+6.0
D+3.3
3,969
D
34.2%Wilson656
33.8%Taft648
32.0%
D+0.4
D+17.9
R+19.1
1,919
R
36.9%Bryan543
54.4%Taft800
8.6%
R+17.5
D+24.0
R+7.9
1,470
R
22.4%Parker280
63.8%Roosevelt799
13.8%
R+41.5
R+42.3
R+21.8
1,252
D
48.8%Bryan486
48.0%McKinley478
3.1%
D+0.8
R+33.7
D+8.4
995
D
66.0%Bryan654
31.5%McKinley312
2.5%
D+34.5
D+31.5
D+40.6
991
D
42.3%Cleveland265
39.2%Harrison246
18.5%
D+3.0
—
D+1.4
627
voter registration
Registered voters
By party of registration, over time
Party registration · 2024R+39.0
vs
Presidential vote · 2024R+53.8
Registration leans Republican; the presidential vote runs 15 points more Democratic.
DemocraticRepublicanUnaffiliatedOther parties
† Some years predate full county coverage; a flagged year sums only the counties reporting it.
Voter registration in Ontario, OR-ID
Year
Total registered
Democratic
Republican
Unaffiliated
Other
2018 (partial)
10,999
922
6,356
3,620
101
2020 (partial)
13,072
1,166
8,294
3,443
169
2022
30,647
3,391
15,010
11,186
1,060
2024
32,267
3,361
15,937
11,813
1,156
domestic migration
Who moves in and out
Net domestic migration over time
−115 net domestic migration · 2025
20112025
Net +1,194 over 2011–2025 · gain loss
Domestic migration in Ontario, OR-ID in Ontario, OR-ID: net domestic migration by year
Year
Net domestic migration
2011
−697
2012
−263
2013
−470
2014
−253
2015
−214
2016
+69
2017
+144
2018
+370
2019
+283
2021
+828
2022
+688
2023
+593
2024
+231
2025
−115
The Ontario metro straddles the Snake River, drawing workers across a state line that separates meaningfully different tax and labor regimes. Malheur County leans heavily Republican in statewide races despite sitting within Oregon's Democratic trifecta.
Across the recorded series it reached a Democratic high of 34.5 points in 1896 and a Republican high of 53.8 points in 2024. Between 2020 and 2024 the metro moved 3.5 points toward the Republican candidate; the 2024 margin was 53.8 points.
A population of 58,725, a 67% non-Hispanic-white share, and a median household income of $60,516 describe the metro. The metro's voting pattern over the last decade is most similar to that of Twin Falls, ID and Burley, ID.
Akashic
Political twins — metros
The metros whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
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, OR-ID, Idaho. Akashic. https://akashic.app/cbsa/36620/. Accessed May 20, 2026. License: CC BY 4.0.
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In 2024, Ontario, OR-ID, Idaho voted Republican by 53.8 points (R+53.8), carried by the Republican candidate. Out of 22,706 votes cast, 4,948 went Democratic and 17,168 went Republican.
When did Ontario, OR-ID, Idaho last vote Democratic?
The most recent presidential election in which Ontario, OR-ID, Idaho voted Democratic was 1936.
How many people live in Ontario, OR-ID, Idaho?
Ontario, OR-ID, Idaho has a population of 58,725 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Ontario, OR-ID, Idaho?
Median household income in Ontario, OR-ID, Idaho is $60,516 — below the national median of $80,734. The Idaho state median is $77,800.
What is the political history of Ontario, OR-ID, Idaho?
Akashic tracks 34 presidential elections in Ontario, OR-ID, Idaho from 1892 to 2024. Of those, 7 went Democratic and 27 went Republican.
