HarrisDemocratic29.6%9,251TrumpRepublican67.2%20,973KennedyWe The People1.8%551
R+37.5- Lead
- 11,722
- Total
- 31,225
- vs nation
- R+36.1
- Turnout
- 57.7%
Akashiccounty
Umatilla County, OR
Office (updates table and map)
President margin by year
Place winner margin
Boundary by 2024 margin · Precinct returns · VEST · MIT Election Lab
President results by year
2024 turnout 57.7% of 54,700 citizens 18+
BidenDemocratic32.4%10,707TrumpRepublican64.4%21,270JorgensenLibertarian2.2%740
R+32.0- Lead
- 10,563
- Total
- 33,038
- vs nation
- R+36.4
- Turnout
- 63.4%
ClintonDemocratic27.8%7,673TrumpRepublican61.8%17,059JohnsonLibertarian5.3%1,457
R+34.0- Lead
- 9,386
- Total
- 27,597
- vs nation
- R+36.1
- Turnout
- 55.6%
ObamaDemocratic34.4%8,584RomneyRepublican62.1%15,499JohnsonLibertarian1.4%354
R+27.7- Lead
- 6,915
- Total
- 24,969
- vs nation
- R+31.5
- Turnout
- —
ObamaDemocratic37.2%9,484McCainRepublican59.8%15,254OtherAll other candidates3.1%785
R+22.6- Lead
- 5,770
- Total
- 25,523
- vs nation
- R+29.9
- Turnout
- —
KerryDemocratic33.8%8,884BushRepublican64.8%17,068OtherAll other candidates1.4%370
R+31.1- Lead
- 8,184
- Total
- 26,322
- vs nation
- R+28.6
- Turnout
- —
GoreDemocratic33.9%7,809BushRepublican61.3%14,140NaderGreen2.8%655
R+27.5- Lead
- 6,331
- Total
- 23,060
- vs nation
- R+28.0
- Turnout
- —
ClintonDemocratic40.8%8,774DoleRepublican45.1%9,703PerotReform11.6%2,500
R+4.3- Lead
- 929
- Total
- 21,495
- vs nation
- R+12.8
- Turnout
- —
Key facts
- 2024 presidential margin
- R+37.5MIT Election Lab
- Population
- 79,9402024 5-year
- Median household income
- $67,7282024 5-year
- White (non-Hispanic)
- 61.5%2024 5-year
- Black
- 0.7%2024 5-year
- Hispanic / Latino
- 29.7%2024 5-year
- Peak Democratic margin
- D+30.4 in 1932MIT Election Lab
- Peak Republican margin
- R+45.2 in 1904MIT Election Lab
- Most similar
- Grant County, WA · twin score 90.8
Midterm durability
Total general-election participants divided by same-year citizen voting-age population. These are total ballots or participating voters—not presidential candidate votes.
- 2024 total turnout
- 57.7%31,537 participants ÷ 54,700 CVAP
- 2020→2022 drop-off
- +17.5 ptsVolatile
- Drop-off versus state
- +2.4 ptsPositive means a larger decline than the statewide pattern
- Mechanical 2026 scenario
- 40.1%–45.2%Recent-cycle and two-cycle persistence scenarios; not a forecast
| Election | Participants | CVAP | Turnout | Quality |
|---|---|---|---|---|
| 2016 · Presidential | 28,488 | 51,259 | 55.6% | A/A |
| 2018 · Midterm | 24,918 | 51,670 | 48.2% | A/A |
| 2020 · Presidential | 33,506 | 52,848 | 63.4% | A/A |
| 2022 · Midterm | 25,456 | 55,516 | 45.9% | C/A |
| 2024 · Presidential | 31,537 | 54,700 | 57.7% | A/A |
Sources and methods
- 2016: numerator source 158, denominator source 157; total voters participating; eavs-f1a-v1:observed:native; allocation share 0.0%; series 293/111.
- 2018: numerator source 158, denominator source 157; total voters participating; eavs-f1a-v1:observed:native; allocation share 0.0%; series 297/138.
- 2020: numerator source 158, denominator source 157; total voters participating; eavs-f1a-v1:observed:native; allocation share 0.0%; series 301/2.
- 2022: numerator source 159, denominator source 157; top ticket votes; canonical-complete-contest-floor-v1; allocation share 0.0%; series 154/183.
- 2024: numerator source 158, denominator source 157; total voters participating; eavs-f1a-v1:observed:native; allocation share 0.0%; series 311/228.
Precinct data
Results by precinct
45 precincts · 31,225 votes
Precinct boundaries and identifiers are cycle-specific. This table does not join rows across years without a validated crosswalk.
| Precinct -102102 | 497 | 995 | 61 | 1,553 | 32.0% | 64.1% | R+32.1 |
|---|---|---|---|---|---|---|---|
| Precinct -130130 | 478 | 991 | 67 | 1,536 | 31.1% | 64.5% | R+33.4 |
| Precinct -128128 | 543 | 944 | 44 | 1,531 | 35.5% | 61.7% | R+26.2 |
| Precinct -111111 | 662 | 794 | 46 | 1,502 | 44.1% | 52.9% | R+8.8 |
| Precinct -104104 | 271 | 1,167 | 39 | 1,477 | 18.3% | 79.0% | R+60.7 |
| Precinct -141141 | 429 | 925 | 58 | 1,412 | 30.4% | 65.5% | R+35.1 |
| Precinct -103103 | 267 | 964 | 28 | 1,259 | 21.2% | 76.6% | R+55.4 |
| Precinct -105105 | 297 | 894 | 39 | 1,230 | 24.1% | 72.7% | R+48.5 |
| Precinct -126126 | 418 | 735 | 37 | 1,190 | 35.1% | 61.8% | R+26.6 |
| Precinct -129129 | 428 | 699 | 42 | 1,169 | 36.6% | 59.8% | R+23.2 |
| Precinct -137137 | 425 | 648 | 41 | 1,114 | 38.2% | 58.2% | R+20.0 |
| Precinct -143143 | 371 | 710 | 27 | 1,108 | 33.5% | 64.1% | R+30.6 |
| Precinct -138138 | 441 | 564 | 44 | 1,049 | 42.0% | 53.8% | R+11.7 |
| Precinct -120120 | 221 | 780 | 29 | 1,030 | 21.5% | 75.7% | R+54.3 |
| Precinct -139139 | 480 | 463 | 33 | 976 | 49.2% | 47.4% | D+1.7 |
| Precinct -110110 | 212 | 721 | 18 | 951 | 22.3% | 75.8% | R+53.5 |
| Precinct -136136 | 253 | 605 | 47 | 905 | 28.0% | 66.9% | R+38.9 |
| Precinct -132132 | 319 | 509 | 19 | 847 | 37.7% | 60.1% | R+22.4 |
| Precinct -106C106C | 211 | 585 | 28 | 824 | 25.6% | 71.0% | R+45.4 |
| Precinct -113113 | 109 | 574 | 19 | 702 | 15.5% | 81.8% | R+66.2 |
| Precinct -124C124C | 156 | 488 | 23 | 667 | 23.4% | 73.2% | R+49.8 |
| Precinct -142142 | 195 | 444 | 25 | 664 | 29.4% | 66.9% | R+37.5 |
| Precinct -123123 | 146 | 465 | 16 | 627 | 23.3% | 74.2% | R+50.9 |
| Precinct -133133 | 213 | 362 | 18 | 593 | 35.9% | 61.0% | R+25.1 |
| Precinct -127127 | 173 | 379 | 23 | 575 | 30.1% | 65.9% | R+35.8 |
| Precinct -101101 | 82 | 415 | 14 | 511 | 16.0% | 81.2% | R+65.2 |
| Precinct -131131 | 181 | 300 | 10 | 491 | 36.9% | 61.1% | R+24.2 |
| Precinct -121121 | 102 | 314 | 10 | 426 | 23.9% | 73.7% | R+49.8 |
| Precinct -114114 | 57 | 307 | 2 | 366 | 15.6% | 83.9% | R+68.3 |
| Precinct -106R106R | 59 | 262 | 11 | 332 | 17.8% | 78.9% | R+61.1 |
| Precinct -125C125C | 75 | 245 | 11 | 331 | 22.7% | 74.0% | R+51.4 |
| Precinct -125R125R | 62 | 237 | 8 | 307 | 20.2% | 77.2% | R+57.0 |
| Precinct -107C107C | 69 | 206 | 6 | 281 | 24.6% | 73.3% | R+48.8 |
| Precinct -115115 | 50 | 193 | 6 | 249 | 20.1% | 77.5% | R+57.4 |
| Precinct -107R107R | 29 | 191 | 7 | 227 | 12.8% | 84.1% | R+71.4 |
| Precinct -109C109C | 36 | 151 | 9 | 196 | 18.4% | 77.0% | R+58.7 |
| Precinct -124R124R | 27 | 142 | 6 | 175 | 15.4% | 81.1% | R+65.7 |
| Precinct -108R108R | 42 | 118 | 5 | 165 | 25.5% | 71.5% | R+46.1 |
| Precinct -116116 | 49 | 77 | 6 | 132 | 37.1% | 58.3% | R+21.2 |
| Precinct -119119 | 34 | 96 | 2 | 132 | 25.8% | 72.7% | R+47.0 |
| Precinct -108C108C | 26 | 85 | 6 | 117 | 22.2% | 72.6% | R+50.4 |
| Precinct -112112 | 15 | 89 | 4 | 108 | 13.9% | 82.4% | R+68.5 |
| Precinct -117C117C | 19 | 75 | 3 | 97 | 19.6% | 77.3% | R+57.7 |
| Precinct -109R109R | 12 | 42 | 3 | 57 | 21.1% | 73.7% | R+52.6 |
| Precinct -117R117R | 10 | 23 | 1 | 34 | 29.4% | 67.6% | R+38.2 |
presidential history
Presidential margin, 1892–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 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
Federal and statewide elections · 3 House · 39 Senate · 2 Senate special · 12 governor
U.S. House
Each row shows U.S. House votes counted inside this Place. “Vote lead” is the local lead here, not necessarily the winner of the full contest.
U.S. Senate
Each row shows U.S. Senate votes counted inside this Place. “Vote lead” is the local lead here, not necessarily the winner of the full contest.
U.S. Senate special elections
Each row shows U.S. Senate special votes counted inside this Place. “Vote lead” is the local lead here, not necessarily the winner of the full contest.
Governor
Each row shows Governor votes counted inside this Place. “Vote lead” is the local lead here, not necessarily the winner of the full contest.
voter registration
Registered voters
By party of registration, over time
Party registration · 2024R+16.0
Presidential vote · 2024R+37.5
Registration leans Republican; the presidential vote runs 22 points more Democratic.
51,385 registered voters · 2024 · up from 49,241 in 2022
domestic migration
Who moves in and out
Net migration over time, and who arrivals are — where they came from and what those places vote
−2 net domestic migration · 2025
20112025
Net −1,914 over 2011–2025 · gain loss
Arrivals reported $50,372 in average income, against $69,884 for residents who stayed — 28% lower. (IRS SOI, 2022–23)
The places arrivals came from lean R+13.6 on average — 24 points more Democratic-leaning than Umatilla County, OR itself (R+37.5).
Where arrivals came from lean of each source
- Benton County, WA143R+21.7
- Morrow County, OR141R+48.0
- Walla Walla County, WA119R+8.0
- Franklin County, WA57R+22.6
- Union County, OR56R+40.0
- Multnomah County, OR43D+61.6
Where departures went households, 2022–23
- Walla Walla County, WA158
- Benton County, WA142
- Morrow County, OR125
- Franklin County, WA63
- Multnomah County, OR59
- Union County, OR50
Migration is one input to a place’s political change, not its cause — a shift can also come from residents changing their minds, generational turnover, or turnout. These figures describe the places people moved between; they do not measure how any mover voted.
| Year | Net domestic migration |
|---|---|
| 2011 | +292 |
| 2012 | −210 |
| 2013 | −565 |
| 2014 | −663 |
| 2015 | −540 |
| 2016 | −176 |
| 2017 | +7 |
| 2018 | −36 |
| 2019 | +211 |
| 2021 | −285 |
| 2022 | +3 |
| 2023 | −192 |
| 2024 | +242 |
| 2025 | −2 |
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.
Across the recorded series it reached a Democratic high of 30.4 points in 1932 and a Republican high of 45.2 points in 1904. Between 2020 and 2024 the county moved 5.6 points toward the Republican candidate; the 2024 margin was 37.5 points.
A population of 79,940, a 62% non-Hispanic-white share, and a median household income of $67,728 describe the county. The county's voting pattern over the last decade is most similar to that of Grant County and Tehama County.
Political twins — counties
The counties whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Grant County
Washington
90.8twin score
median agecollege sharepopulation scale≠ % Catholic
Tehama County
California
86.4twin score
% Latino2000 marginMexican ancestry
Otero County
New Mexico
86.3twin score
% Latinomedian age2000 margin
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.
Browse places by community — income, education, race & ethnicity, language — all community cuts →
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.
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Cities & towns in Umatilla County
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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+37.5), carried by the Republican candidate. Out of 31,225 votes cast, 9,251 went Democratic and 20,973 went Republican.
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.