97227 is a Democratic stronghold. About 88% of voters here vote Democratic and 12% Republican.
About 69% of adults in 97227 typically vote, above the U.S. average of about 62%. Among adults in 97227, ~61% vote Democratic, ~8% Republican, and ~31% don't vote. The map below shows estimated turnout by block group.
How 97227 compares
Among zip codes within 15 miles, 97227 leans more Democratic than 59 of 66 neighbors.
97227 runs about 62 points more Democratic than Oregon as a whole.
Politics vary noticeably by block within 97227. The northeast side is the most Democratic-leaning (D+83) and the south side is the least Democratic-leaning (D+65), a spread of about 18 points.
Why 97227 leans the way it does
This analysis examined 14,881 data points per zip code to find what predicts political lean and turnout. The items below are a few correlations that stood out for 97227, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 98% of residents in 97227 live in densely developed areas, about 62 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and 97227 sits in the top quarter (about 66%, above 96% of zip codes). A high never-married share predicts Democratic voting, and about 63% of adults in 97227 have never been married, above 98% of zip codes.
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; 97227, OR sits in the top tenth nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in 97227 looks the way it does
Turnout in 97227 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 Zip Codes
Zip Codes with Similar Populations
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.