Corbett-Terwilliger-Lair Hill is a Democratic stronghold. About 84% of voters here vote Democratic and 16% Republican.
About 80% of adults in Corbett-Terwilliger-Lair Hill typically vote, above the U.S. average of about 62%. Among adults in Corbett-Terwilliger-Lair Hill, ~67% vote Democratic, ~13% Republican, and ~20% don't vote. The map below shows estimated turnout by block group.
How Corbett-Terwilliger-Lair Hill compares
Among neighborhoods within 5 miles, Corbett-Terwilliger-Lair Hill leans more Democratic than 17 of 43 neighbors.
Corbett-Terwilliger-Lair Hill runs about 53 points more Democratic than Oregon as a whole.
Politics vary noticeably by block within Corbett-Terwilliger-Lair Hill. The north side is the most Democratic-leaning (D+78) and the southeast side is the least Democratic-leaning (D+60), a spread of about 18 points.
Why Corbett-Terwilliger-Lair Hill leans the way it does
This analysis examined 14,881 data points per neighborhood to find what predicts political lean and turnout. The items below are a few correlations that stood out for Corbett-Terwilliger-Lair Hill, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 76% of adults in Corbett-Terwilliger-Lair Hill hold a bachelor's degree, about 48 points above the U.S. average of 28%.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; Corbett-Terwilliger-Lair Hill, Portland, OR sits in the top tenth 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 Corbett-Terwilliger-Lair Hill looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Corbett-Terwilliger-Lair Hill 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 72%, about 12 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and more than 99% of adults in Corbett-Terwilliger-Lair Hill have completed high school, above 94% of neighborhoods. Learn more about the findings and methodology on the political spectrum map.
Nearby Neighborhoods
- Homestead, Portland, OR D+69
- Brooklyn, Portland, OR D+81
- Hillsdale, Portland, OR D+74
- University District, Portland, OR D+62
- Sellwood-Moreland, Portland, OR D+77
- Southwest Hills, Portland, OR D+72
- Hosford-Abernethy, Portland, OR D+81
- Reed, Portland, OR D+74
- Buckman, Portland, OR D+80
- Eastmoreland, Portland, OR D+77
Neighborhoods with Similar Populations
- Lakeview-Bakersfield, Bakersfield, CA D+25
- City College Area, Long Beach, CA D+18
- Indiana University, Bloomington, IN D+60
- Riverside, Baltimore, MD D+64
- Moreno Mission, San Diego, CA D+40
- East Raleigh, Raleigh, NC D+64
- Jordan, Minneapolis, MN D+63
- Merle Hay, Des Moines, IA D+24
- Claytown, Detroit, MI D+16
- Downtown Elizabeth, Elizabeth, NJ D+27
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.