97401 is a Democratic stronghold. About 75% of voters here vote Democratic and 25% Republican.
About 62% of adults in 97401 typically vote, near the U.S. average of about 62%. Among adults in 97401, ~47% vote Democratic, ~15% Republican, and ~38% don't vote. The map below shows estimated turnout by block group.
How 97401 compares
Among zip codes within 15 miles, 97401 leans more Democratic than 11 of 13 neighbors.
97401 runs about 36 points more Democratic than Oregon as a whole.
Politics vary noticeably by block within 97401. The southwest side is the most Democratic-leaning (D+73) and the northeast side is the least Democratic-leaning (D+38), a spread of about 35 points.
Why 97401 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 97401, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 97% of residents in 97401 live in densely developed areas, about 61 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and 97401 sits in the top quarter (about 48%, above 88% of zip codes). A high never-married share predicts Democratic voting, and about 51% of adults in 97401 have never been married, above 95% of zip codes.
Population density and Democratic lean
Places with high population density tend to lean Democratic; 97401, OR sits in the top tenth nationally on this measure.
Why turnout in 97401 looks the way it does
Areas with high high-school completion turn out at higher rates. About 96% of adults in 97401 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 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.