Warren leans Republican by roughly 16 points: about 42% of voters vote Democratic and 58% Republican.
About 89% of adults in Warren typically vote, above the U.S. average of about 62%. Among adults in Warren, ~37% vote Democratic, ~52% Republican, and ~11% don't vote. The map below shows estimated turnout by block group.
How Warren compares
Among cities within 25 miles, Warren leans more Republican than 30 of 59 neighbors.
Warren runs about 31 points more Republican than Oregon as a whole. Oregon leans Democratic overall, while Warren is one of the few Republican-leaning pockets.
Why Warren leans the way it does
This analysis examined 14,881 data points per city to find what predicts political lean and turnout. The items below are a few correlations that stood out for Warren, not a ranked or complete list of what matters most.
Warren votes Republican even though it is densely developed (about 29%, about 7 points below the U.S. average of 36%). Here an older population outweighs the Democratic lean that density usually predicts. A high family-household share predicts Republican voting, and about 77% of households in Warren are family households, above 81% of cities. Warren runs against the grain of Oregon, a Republican-leaning pocket in a Democratic-leaning state.
Renting and voter turnout
Places with homeowner-heavy households tend to turn out at a higher rate; Warren, OR sits in the bottom tenth nationally on this measure.
Why turnout in Warren looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Warren is in the top quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 70%, about 10 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 94% of households in Warren own their home, about 19 points above the U.S. average of 75%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- St. Helens, OR R+9
- Yankton, OR R+24
- Scappoose, OR R+10
- Columbia City, OR R+22
- South Scappoose, OR R+5
- Sara, WA R+7
- Ridgefield, WA R+5
- Deer Island, OR R+30
- Holbrook, OR D+29
- Woodland, WA R+31
Cities with Similar Populations
- Bentleyville, PA R+37
- Lynchburg, OH R+66
- Lockland, OH D+17
- Unadilla, NY R+29
- Montrose, NY D+10
- Haverhill, FL D+23
- Anahuac, TX R+52
- Hagerstown, IN R+51
- South Mills, NC R+48
- Redland, AL R+46
All Local Stats
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Sources and methodology
Precinct-level voting records used to fit the model come from Oregon Secretary of State, Elections Division, distributed by the Voting and Election Science Team. Demographic inputs come from the U.S. Census Bureau (ACS 5-year estimates and the 2020 Decennial Census). Health and environmental inputs come from the CDC (PLACES and the Environmental Justice Index). Land cover comes from the USGS and EPA. Election-day and lead-up weather come from PRISM 4km daily grids and the NOAA Global Historical Climatology Network. Mail-voting and election-administration patterns come from the MIT Election Lab's Survey of the Performance of American Elections. Block-group crime detail comes from CrimeGrade. Internet data and modeling support provided by ISPreports.org.
Modeling and analysis by the BestNeighborhood data science team. Full methodology and findings: political spectrum map.
Methodology reviewed by the BestNeighborhood data team. Last updated May 2026.