Oregon 4th Congressional District
Akashic| Year | Margin (D minus R) |
|---|---|
| 2008 | +17.7% |
| 2012 | +14.0% |
| 2016 | +7.9% |
| 2020 | +12.6% |
| 2024 | +12.0% |
Federal officeholders only. State and local officeholders are planned for the next data pass.
U.S. House
Each result reflects the U.S. House district as it was drawn for that election; redistricting has redrawn these lines over time, so they can differ from the current 120th-Congress district shown on the map above.
| Year | District | Won | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | 4 | D | 51.7%195,862 | 43.9%166,430 | 378,765 |
| 2022 | 4 | D | 50.5%171,372 | 43.1%146,055 | 339,077 |
| 2020 | 4 | D | 51.5%240,950 | 46.2%216,081 | 467,705 |
| 2018 | 4 | D | 56.0%208,710 | 40.9%152,414 | 372,893 |
| 2016 | 4 | D | 55.5%220,628 | 39.7%157,743 | 397,568 |
| 2014 | 4 | D | 58.6%181,624 | 37.6%116,534 | 310,179 |
| 2012 | 4 | D | 59.1%212,866 | 39.0%140,549 | 360,088 |
| 2010 | 4 | D | 54.5%162,416 | 43.6%129,877 | 298,052 |
| 2008 | 4 | D | 82.3%275,143 | 0.0%0 | 334,146 |
| 2006 | 4 | D | 62.2%180,607 | 37.6%109,105 | 290,244 |
| 2004 | 4 | D | 61.0%228,611 | 37.6%140,882 | 374,909 |
| 2002 | 4 | D | 63.8%168,150 | 34.4%90,523 | 263,481 |
| 2000 | 4 | D | 68.0%197,998 | 30.6%88,950 | 291,065 |
| 1998 | 4 | D | 70.1%157,524 | 28.6%64,143 | 224,637 |
| 1996 | 4 | D | 65.7%177,270 | 28.4%76,649 | 269,856 |
| 1994 | 4 | D | 66.8%158,981 | 33.2%78,947 | 238,149 |
| 1992 | 4 | D | 71.4%199,372 | 28.5%79,733 | 279,299 |
| 1990 | 4 | D | 85.8%162,494 | 0.0%0 | 189,352 |
| 1988 | 4 | D | 72.0%108,483 | 28.0%42,220 | 150,735 |
| 1986 | 4 | D | 54.1%105,697 | 45.9%89,795 | 195,548 |
| 1984 | 4 | D | 58.2%134,190 | 41.8%96,487 | 230,687 |
| 1982 | 4 | D | 59.0%115,448 | 40.9%80,054 | 195,524 |
| 1980 | 4 | D | 54.8%158,745 | 45.2%130,861 | 289,634 |
| 1978 | 4 | D | 56.3%124,745 | 43.7%96,953 | 221,766 |
| 1976 | 4 | D | 50.0%122,475 | 35.1%85,943 | 244,852 |
U.S. Senate
| Year | Won | Democratic | Republican | Total |
|---|---|---|---|---|
| 2022 | D | 55.8%1,076,424 | 40.9%788,991 | 1,927,949 |
| 2020 | D | 57.0%1,321,047 | 39.4%912,814 | 2,318,847 |
| 2016 | D | 56.6%1,105,119 | 33.3%651,106 | 1,952,478 |
| 2014 | D | 55.7%814,537 | 36.9%538,847 | 1,461,618 |
| 2010 | D | 57.2%825,507 | 39.2%566,199 | 1,442,588 |
| 2008 | D | 48.9%864,392 | 45.6%805,159 | 1,767,504 |
| 2004 | D | 63.4%1,128,728 | 31.7%565,254 | 1,780,550 |
| 2002 | R | 39.6%501,898 | 56.2%712,287 | 1,267,221 |
| 1998 | D | 61.1%682,425 | 33.8%377,739 | 1,117,747 |
| 1996 | R | 45.9%624,370 | 49.8%677,336 | 1,360,230 |
| 1992 | R | 46.7%639,851 | 52.4%717,455 | 1,370,240 |
| 1990 | R | 46.2%507,743 | 53.7%590,095 | 1,099,255 |
| 1986 | R | 36.0%375,735 | 63.0%656,317 | 1,042,555 |
| 1984 | R | 33.4%406,122 | 66.5%808,152 | 1,214,735 |
| 1980 | R | 44.0%501,963 | 52.1%594,290 | 1,139,939 |
| 1978 | R | 38.3%341,616 | 61.7%550,165 | 891,781 |
Oregon's 4th stretches from Eugene's university hub through the Coast Range to the Pacific, blending Democratic-voting Willamette Valley precincts with rural timber communities—a mix that has compressed once-comfortable Democratic margins to low single digits.
Across the recorded series it reached a Democratic high of 17.7 points in 2008. Between 2020 and 2024 the district moved 0.6 points toward the Republican candidate; the 2024 margin was 12.0 points.
A population of 706,178, a 82% non-Hispanic-white share, and a median household income of $68,838 describe the district. The district's voting pattern over the last decade is most similar to that of Congressional District 5 and Congressional District 1.
The congressional districts 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 →
Oregon 4th Congressional District. Akashic. https://akashic.app/cd/4104/. Accessed May 20, 2026. License: CC BY 4.0.