Douglas County leans Republican by roughly 30 points: about 35% of voters vote Democratic and 65% Republican.
About 75% of adults in Douglas County typically vote, above the U.S. average of about 62%. Among adults in Douglas County, ~26% vote Democratic, ~49% Republican, and ~25% don't vote. The map below shows estimated turnout by block group.
How Douglas County compares
Douglas County runs about 44 points more Republican than Oregon as a whole. Oregon leans Democratic overall, while Douglas County is one of the few Republican-leaning pockets.
Politics vary noticeably by city within Douglas County. The southwest side is the most Republican-leaning (R+44) and the northwest side is the least Republican-leaning (R+28), a spread of about 16 points.
Why Douglas County leans the way it does
This analysis examined 14,881 data points per county to find what predicts political lean and turnout. The items below are a few correlations that stood out for Douglas County, not a ranked or complete list of what matters most.
Douglas County votes against the grain of Oregon. Oregon leans Democratic overall, while Douglas County runs about 44 points more Republican.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; Douglas County, OR sits in the top quarter nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in Douglas County looks the way it does
Turnout in Douglas County sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Coos County, OR R+10
- Lane County, OR D+21
- Josephine County, OR R+25
- Jackson County, OR R+3
- Curry County, OR R+11
- Benton County, OR D+42
- Linn County, OR R+25
- Lincoln County, OR D+13
- Klamath County, OR R+33
- Del Norte County, CA R+15
Counties with Similar Populations
- Craighead County, AR R+27
- Androscoggin County, ME R+12
- Cowlitz County, WA R+18
- Hardin County, KY R+27
- Mercer County, PA R+27
- Delaware County, IN R+11
- Albemarle County, VA D+24
- LaPorte County, IN R+11
- Hanover County, VA R+21
- Ontario County, NY R+2
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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.