Philomath leans Democratic by roughly 26 points: about 63% of voters vote Democratic and 37% Republican.
About 86% of adults in Philomath typically vote, above the U.S. average of about 62%. Among adults in Philomath, ~54% vote Democratic, ~32% Republican, and ~14% don't vote. The map below shows estimated turnout by block group.
How Philomath compares
Among cities within 25 miles, Philomath leans more Democratic than 46 of 49 neighbors.
Philomath runs about 11 points more Democratic than Oregon as a whole.
Politics vary noticeably by neighborhood within Philomath. The east side runs the most Democratic (D+40) and the west side runs the most Republican (R+14), a spread of about 54 points.
Why Philomath 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 Philomath, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 30% of residents in Philomath live in densely developed areas, about 7 points below the U.S. average of 36%. High college attainment predicts Democratic voting, and Philomath sits in the top quarter (about 46%, above 92% of cities).
Population density and Democratic lean
Places with high population density tend to lean Democratic; Philomath, OR sits in the top quarter nationally on this measure.
Why turnout in Philomath looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Philomath 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 69%, about 9 points above the U.S. average of 60%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Wren, OR D+29
- Nashville, OR D+9
- Corvallis, OR D+54
- Lewisburg, OR D+33
- Oakville, OR R+36
- Peoria, OR R+30
- Orleans, OR R+13
- Bellfountain, OR R+15
- Blodgett, OR Even
Cities with Similar Populations
- Valley Park, MO D+8
- Glennville, GA R+42
- Aurora, IN R+53
- St. Augustine Shores, FL R+23
- Jamison, PA R+3
- Gray, ME Even
- Graniteville, SC R+13
- Highland Heights, OH Even
- Monona, WI D+58
- Vandergrift, PA R+29
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.