Columbia County, Oregon
Precinct data
Results by precinct
33 precincts · 31,334 votes
Precinct boundaries and identifiers are cycle-specific. This table does not join rows across years without a validated crosswalk.
| Precinct -26 ST HELENS SIX26 ST HELENS SIX | 1,088 | 1,420 | 103 | 2,611 | 41.7% | 54.4% | R+12.7 |
|---|---|---|---|---|---|---|---|
| Precinct -24 ST HELENS FOUR24 ST HELENS FOUR | 1,133 | 1,252 | 93 | 2,478 | 45.7% | 50.5% | R+4.8 |
| Precinct -21 ST HELENS ONE21 ST HELENS ONE | 1,108 | 1,164 | 114 | 2,386 | 46.4% | 48.8% | R+2.3 |
| Precinct -32 SCAPPOOSE TWO32 SCAPPOOSE TWO | 1,159 | 1,087 | 106 | 2,352 | 49.3% | 46.2% | D+3.1 |
| Precinct -41 CITY OF VERNONIA41 CITY OF VERNONIA | 392 | 936 | 57 | 1,385 | 28.3% | 67.6% | R+39.3 |
| Precinct -53 CITY OF COLUMBIA CITY53 CITY OF COLUMBIA CITY | 625 | 690 | 39 | 1,354 | 46.2% | 51.0% | R+4.8 |
| Precinct -34 SCAPPOOSE FOUR34 SCAPPOOSE FOUR | 672 | 613 | 57 | 1,342 | 50.1% | 45.7% | D+4.4 |
| Precinct -06 DELENA06 DELENA | 407 | 770 | 37 | 1,214 | 33.5% | 63.4% | R+29.9 |
| Precinct -35 SE SCAPPOOSE35 SE SCAPPOOSE | 517 | 567 | 44 | 1,128 | 45.8% | 50.3% | R+4.4 |
| Precinct -40 YANKTON40 YANKTON | 396 | 665 | 32 | 1,093 | 36.2% | 60.8% | R+24.6 |
| Precinct -12 McNULTY12 McNULTY | 431 | 579 | 38 | 1,048 | 41.1% | 55.2% | R+14.1 |
| Precinct -15 RAINIER15 RAINIER | 392 | 619 | 34 | 1,045 | 37.5% | 59.2% | R+21.7 |
| Precinct -19 S WARREN19 S WARREN | 422 | 530 | 43 | 995 | 42.4% | 53.3% | R+10.9 |
| Precinct -01 CITY OF CLATSKANIE01 CITY OF CLATSKANIE | 349 | 519 | 34 | 902 | 38.7% | 57.5% | R+18.8 |
| Precinct -47 CHAPMAN47 CHAPMAN | 388 | 422 | 38 | 848 | 45.8% | 49.8% | R+4.0 |
| Precinct -10 MILTON10 MILTON | 370 | 445 | 26 | 841 | 44.0% | 52.9% | R+8.9 |
| Precinct -44 RURAL VERNONIA44 RURAL VERNONIA | 233 | 578 | 26 | 837 | 27.8% | 69.1% | R+41.2 |
| Precinct -08 GOBLE08 GOBLE | 277 | 416 | 33 | 726 | 38.2% | 57.3% | R+19.1 |
| Precinct -31 SCAPPOOSE ONE31 SCAPPOOSE ONE | 332 | 355 | 37 | 724 | 45.9% | 49.0% | R+3.2 |
| Precinct -20 N WARREN20 N WARREN | 275 | 374 | 29 | 678 | 40.6% | 55.2% | R+14.6 |
| Precinct -46 APIARY46 APIARY | 198 | 460 | 20 | 678 | 29.2% | 67.8% | R+38.6 |
| Precinct -04 N CLATSKANIE-MARSHLAND04 N CLATSKANIE-MARSHLAND | 230 | 332 | 26 | 588 | 39.1% | 56.5% | R+17.3 |
| Precinct -05 S CLATSKANIE05 S CLATSKANIE | 176 | 392 | 18 | 586 | 30.0% | 66.9% | R+36.9 |
| Precinct -49 N DEER ISLAND49 N DEER ISLAND | 206 | 361 | 19 | 586 | 35.2% | 61.6% | R+26.5 |
| Precinct -14 QUINCY14 QUINCY | 187 | 329 | 17 | 533 | 35.1% | 61.7% | R+26.6 |
| Precinct -38 W SCAPPOOSE38 W SCAPPOOSE | 222 | 269 | 19 | 510 | 43.5% | 52.7% | R+9.2 |
| Precinct -36 CANYON36 CANYON | 219 | 212 | 25 | 456 | 48.0% | 46.5% | D+1.5 |
| Precinct -17 W RAINIER17 W RAINIER | 159 | 270 | 9 | 438 | 36.3% | 61.6% | R+25.3 |
| Precinct -48 S DEER ISLAND48 S DEER ISLAND | 115 | 249 | 11 | 375 | 30.7% | 66.4% | R+35.7 |
| Precinct -51 MIST51 MIST | 98 | 186 | 10 | 294 | 33.3% | 63.3% | R+29.9 |
| Precinct -18 E RAINIER18 E RAINIER | 77 | 114 | 14 | 205 | 37.6% | 55.6% | R+18.0 |
| Precinct -39 SAUVIE ISLAND39 SAUVIE ISLAND | 29 | 28 | 1 | 58 | 50.0% | 48.3% | D+1.7 |
| Precinct -50 PRESCOTT50 PRESCOTT | 13 | 24 | 3 | 40 | 32.5% | 60.0% | R+27.5 |
Presidential margin, 1892–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1892 | −27.7% |
| 1896 | −10.1% |
| 1900 | −34.5% |
| 1904 | −61.6% |
| 1908 | −40.4% |
| 1912 | −3.3% |
| 1916 | −15.3% |
| 1920 | −31.8% |
| 1924 | −33.2% |
| 1928 | −32.3% |
| 1932 | +28.1% |
| 1936 | +48.4% |
| 1940 | +31.9% |
| 1944 | +31.3% |
| 1948 | +20.8% |
| 1952 | +4.4% |
| 1956 | +13.3% |
| 1960 | +12.0% |
| 1964 | +51.0% |
| 1968 | +16.8% |
| 1972 | +5.3% |
| 1976 | +20.1% |
| 1980 | +3.2% |
| 1984 | +2.5% |
| 1988 | +16.2% |
| 1992 | +15.8% |
| 1996 | +16.6% |
| 2000 | +4.5% |
| 2004 | +2.8% |
| 2008 | +12.0% |
| 2012 | +5.2% |
| 2016 | −11.5% |
| 2020 | −10.3% |
| 2024 | −13.8% |
U.S. Senate
| Year | Won | Democratic | Republican | Total |
|---|---|---|---|---|
| 2022 | R | 43.8%11,810 | 52.7%14,221 | 26,970 |
| 2020 | R | 45.5%14,375 | 50.5%15,948 | 31,597 |
Registered voters
By party of registration, over time
Registration leans Republican; the presidential vote runs 13 points more Democratic.
42,539 registered voters · 2024 · up from 41,786 in 2022
Who moves in and out
Net migration over time, and who arrivals are — where they came from and what those places vote
+266 net domestic migration · 2025
Net +4,420 over 2011–2025 · gain loss
Arrivals reported $66,247 in average income, against $83,728 for residents who stayed — 21% lower. (IRS SOI, 2022–23)
The places arrivals came from lean D+29.9 on average — 44 points more Democratic-leaning than Columbia County, OR itself (R+13.8).
Where arrivals came from lean of each source
- Washington County, OR385D+33.7
- Multnomah County, OR297D+61.6
- Clackamas County, OR102D+9.8
- Cowlitz County, WA84R+19.8
- Clark County, WA69D+6.9
- Marion County, OR26R+2.0
Where departures went households, 2022–23
- Washington County, OR209
- Multnomah County, OR174
- Cowlitz County, WA115
- Clark County, WA75
- Clackamas County, OR68
- Clatsop County, OR32
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 | −91 |
| 2012 | −213 |
| 2013 | −69 |
| 2014 | +164 |
| 2015 | +72 |
| 2016 | +1,176 |
| 2017 | +776 |
| 2018 | +497 |
| 2019 | +122 |
| 2021 | +575 |
| 2022 | +525 |
| 2023 | +392 |
| 2024 | +228 |
| 2025 | +266 |
Columbia County sits along the Washington border northwest of Portland, and despite its proximity to the metro area, it has shifted roughly 10 points toward Republicans over the past two presidential cycles, reflecting broader rural realignment in the Pacific Northwest.
Across the recorded series it reached a Democratic high of 51.0 points in 1964 and a Republican high of 61.6 points in 1904. Between 2020 and 2024 the county moved 3.5 points toward the Republican candidate; the 2024 margin was 13.8 points.
A population of 53,493, a 84% non-Hispanic-white share, and a median household income of $87,458 describe the county. The county's voting pattern over the last decade is most similar to that of Grays Harbor County and Mason County.
The counties 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.
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 →
Columbia County, Oregon. Akashic. https://akashic.app/county/41009/. Accessed May 20, 2026. License: CC BY 4.0.