Umatilla County, Oregon: New American county. In 2024, voted R+38%. Republican peak: R+45 in 1904.
Key facts
- 2024 presidential margin
- R+38MIT Election Lab
- Political typology
- New AmericanAkashic typology
- Population
- 79,9402024 5-year
- Median household income
- $67,7282024 5-year
- White (non-Hispanic)
- 66.6%2024 5-year
- Black
- 0.7%2024 5-year
- Hispanic / Latino
- 29.7%2024 5-year
- Peak Democratic margin
- D+30 in 1932MIT Election Lab
- Peak Republican margin
- R+45 in 1904MIT Election Lab
- Most similar
- Shelby County, KY · similarity 1.00
2024 results by precinct
2024 precinct map of Umatilla CountyPrecinct-level 2024 presidential results for Umatilla County, with each precinct boundary colored by Democratic-vs-Republican margin.
—
Margin—
Turnout—
Harris +50Trump +50
Real precinct boundaries. Hover for vote totals.
presidential history
Presidential margin, 1876–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1876 | No data |
| 1880 | No data |
| 1884 | No data |
| 1888 | No data |
| 1892 | −30.5% |
| 1896 | +5.6% |
| 1900 | −8.9% |
| 1904 | −45.2% |
| 1908 | −18.2% |
| 1912 | +7.0% |
| 1916 | +10.9% |
| 1920 | −20.1% |
| 1924 | −9.3% |
| 1928 | −37.1% |
| 1932 | +30.4% |
| 1936 | +29.9% |
| 1940 | −2.5% |
| 1944 | −4.0% |
| 1948 | +1.4% |
| 1952 | −19.4% |
| 1956 | −11.4% |
| 1960 | −7.6% |
| 1964 | +27.0% |
| 1968 | −15.7% |
| 1972 | −24.2% |
| 1976 | −7.5% |
| 1980 | −24.8% |
| 1984 | −26.5% |
| 1988 | −10.2% |
| 1992 | −1.6% |
| 1996 | −4.3% |
| 2000 | −27.5% |
| 2004 | −31.1% |
| 2008 | −22.6% |
| 2012 | −27.7% |
| 2016 | −34.0% |
| 2020 | −32.0% |
| 2024 | −37.5% |
DemocraticRepublican
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| R | 9,251 | 20,973 | 31,225 | ||
| R | 10,707 | 21,270 | 33,038 | ||
| R | 7,673 | 17,059 | 27,597 | ||
| R | 8,584 | 15,499 | 24,969 | ||
| R | 9,484 | 15,254 | 25,523 | ||
| R | 8,884 | 17,068 | 26,322 | ||
| R | 7,809 | 14,140 | 23,060 | ||
| R | 8,774 | 9,703 | 21,495 | ||
| R | 6,787 | 7,095 | 19,643 | ||
| R | 8,327 | 10,254 | 18,981 | ||
| R | 8,246 | 14,211 | 22,514 | ||
| R | 7,382 | 12,950 | 22,414 | ||
| R | 7,985 | 9,345 | 18,031 | ||
| R | 6,090 | 10,470 | 18,071 | ||
| R | 6,402 | 8,975 | 16,379 | ||
| D | 10,689 | 6,138 | 16,859 | ||
| R | 8,053 | 9,374 | 17,433 | ||
| R | 7,678 | 9,654 | 17,332 | ||
| R | 7,098 | 10,529 | 17,667 | ||
| D | 5,891 | 5,726 | 11,761 | ||
| R | 4,967 | 5,379 | 10,391 | ||
| R | 4,935 | 5,193 | 10,160 | ||
| D | 5,753 | 2,943 | 9,411 | ||
| D | 5,631 | 2,930 | 8,877 | ||
| R | 2,390 | 5,277 | 7,780 | ||
| R | 3,052 | 3,854 | 8,620 | ||
| R | 3,255 | 4,979 | 8,580 | ||
| D | 4,606 | 3,664 | 8,655 | ||
| D | 1,563 | 1,261 | 4,304 | ||
| R | 1,568 | 2,328 | 4,185 | ||
| R | 840 | 2,642 | 3,987 | ||
| R | 1,638 | 1,975 | 3,794 | ||
| D | 2,083 | 1,859 | 4,001 | ||
| O | 398 | 1,446 | 3,432 | ||
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Demographics
2024 ACS
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
12.0%
English
10.4%
Irish
8.0%
American
5.2%
Scottish
2.8%
Italian
2.5%
French
1.5%
Sample size too small to break out by ancestry reliably.
Multiple ancestry combinations reported; no single grouping above 1%.
Sample size too small to break out by ancestry reliably.
American Indian, Alaska Native, Native Hawaiian, and Pacific Islander combined.
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
Age distribution by sex
Median age: 36.9 in this county, 39.1 nationally
Male
Age
Female
85+
75–84
65–74
55–64
45–54
35–44
25–34
18–24
5–17
<5
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Median household income
Inflation-adjusted dollars
$67,728
Umatilla County ranks near the middle of US counties.
Umatilla County$67,728
Oregon$83,011
United States$80,734
Umatilla County ranks near the middle of US counties by median household income.
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Poverty rate
All persons below federal poverty line
11.8%
Child poverty is below the national average.
Children under 1813.4%
Working age (18–64)11.3%
Seniors (65+)11.1%
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Language at home
Population aged 5 and older
76.7%
speak English only
Spanish22.2%
Other Indo-European0.4%
Asian & Pacific Islander0.4%
Other languages0.3%
Source · ACS 5-year estimates, 2024.
2020 religion census
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 59.8% of residents not counted as adherents by any reporting body.
Umatilla County anchors Oregon's agricultural southeast, where wheat farming and food-processing industries shape a voting pattern that ran nearly 40 points to the right of the state's statewide result in 2024.
Umatilla County has leaned Republican in recent presidential elections, reaching a Democratic margin of thirty points in 1932. Between 2020 and 2024 it moved six points toward the Republican candidate — part of the sharpest rightward shift recorded among any group of places in the country.
Its demographics describe the shift: a 67% non-Hispanic-white share, a median household income of $67,728, and a population of 79,940. The county's voting pattern over the last decade is most similar to that of Shelby County and Stillwater County.
Most similar counties
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.
Umatilla County, Oregon. Akashic. https://akashic.app/county/41059/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
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Frequently asked questions
How did Umatilla County, Oregon vote in 2024?
In 2024, Umatilla County, Oregon voted Republican by 37.5 points (R+38), carried by the Republican candidate. Out of 31,225 votes cast, 9,251 went Democratic and 20,973 went Republican.
What is Umatilla County, Oregon's political typology?
Akashic places Umatilla County, Oregon in the "New American" typology — Communities where a large share of households speak a language other than English — multilingual, Democratic-leaning overall, yet the hardest-swinging bloc toward the Republican Party in 2024. 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 38 elections in the dataset, the county has voted Democratic 7 times, Republican 26 times, and other 1 times.
When did Umatilla County, Oregon last vote Democratic?
The most recent presidential election in which Umatilla County, Oregon voted Democratic was 1964.
How many people live in Umatilla County, Oregon?
Umatilla County, Oregon has a population of 79,940 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Umatilla County, Oregon?
Median household income in Umatilla County, Oregon is $67,728 — below the national median of $80,734. The Oregon state median is $83,011.
What is the political history of Umatilla County, Oregon?
Akashic tracks 38 presidential elections in Umatilla County, Oregon from 1876 to 2024. Of those, 7 went Democratic and 26 went Republican. The county's typology — "New American" — captures where that record, its demographics, and its recent swing place it among American communities.