97086 leans Democratic by roughly 20 points: about 60% of voters vote Democratic and 40% Republican.
About 75% of adults in 97086 typically vote, above the U.S. average of about 62%. Among adults in 97086, ~45% vote Democratic, ~30% Republican, and ~25% don't vote. The map below shows estimated turnout by block group.
How 97086 compares
Among zip codes within 15 miles, 97086 leans more Democratic than 17 of 60 neighbors.
97086 runs about 6 points more Democratic than Oregon as a whole.
Politics vary noticeably by block within 97086. The southwest side is the most Democratic-leaning (D+32) and the northeast side is the least Democratic-leaning (D+12), a spread of about 20 points.
Why 97086 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 97086, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 89% of residents in 97086 live in densely developed areas, about 53 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and 97086 sits in the top quarter (about 42%, above 83% of zip codes).
Population density and Democratic lean
Places with high population density tend to lean Democratic; 97086, OR sits in the top quarter nationally on this measure.
Why turnout in 97086 looks the way it does
Turnout in 97086 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.