97204 is a Democratic stronghold. About 75% of voters here vote Democratic and 25% Republican.
About 39% of adults in 97204 typically vote, below the U.S. average of about 62%. Among adults in 97204, ~29% vote Democratic, ~10% Republican, and ~61% don't vote. The map below shows estimated turnout by block group.
How 97204 compares
Among zip codes within 15 miles, 97204 leans more Democratic than 47 of 68 neighbors.
97204 runs about 37 points more Democratic than Oregon as a whole.
Why 97204 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 97204, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 81% of residents in 97204 live in densely developed areas, about 45 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 49% of adults in 97204 have never been married, above 95% of zip codes.
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; 97204, 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 97204 looks the way it does
Renters vote less often than owners. About 99% of households in 97204 rent, about 74 points above the U.S. average of 25%. High-crime urban areas turn out at lower rates, and 97204 sits in the top 15% on a violent-crime measure. 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.