Portland leans heavily Republican by roughly 34 points: about 33% of voters vote Democratic and 67% Republican.
About 69% of adults in Portland typically vote, above the U.S. average of about 62%. Among adults in Portland, ~23% vote Democratic, ~46% Republican, and ~31% don't vote. The map below shows estimated turnout by block group.
How Portland compares
Among cities within 25 miles, Portland leans more Republican than 129 of 152 neighbors.
Portland runs about 32 points more Republican than Pennsylvania as a whole.
Why Portland 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 Portland, not a ranked or complete list of what matters most.
Car-dependent areas vote Republican. About 89% of residents in Portland drive to work alone, about 15 points above the U.S. average of 74%.
Walkability and Republican lean
Places with a low walkability score tend to lean Republican; Portland, PA sits below the national average on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in Portland looks the way it does
Areas with high high-school completion turn out at higher rates. About 96% of adults in Portland have completed high school, about 6 points above the U.S. average of 90%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Slateford, PA R+34
- Hainesburg, NJ R+34
- Delaware, NJ R+40
- Mount Bethel, PA R+31
- Stier, PA R+38
- Columbia, NJ R+35
- North Bangor, PA R+36
- Mount Hermon, NJ R+36
- Delaware Water Gap, PA D+13
- Walnut Valley, NJ R+32
Cities with Similar Populations
- Old Neely, AR R+68
- Big Spring, KY R+63
- Glenn, MI R+37
- Sperry, MO R+63
- Bucyrus, MO R+70
- Hibbs, PA R+39
- Lost City, OK R+44
- Huntsboro, NC R+21
- Knapp, MN R+52
- Crossroads, TN R+77
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Sources and methodology
Precinct-level voting records used to fit the model come from Pennsylvania Department of State, Bureau of Elections, 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.