97233 leans Democratic by roughly 24 points: about 62% of voters vote Democratic and 38% Republican.
About 53% of adults in 97233 typically vote, below the U.S. average of about 62%. Among adults in 97233, ~33% vote Democratic, ~20% Republican, and ~47% don't vote. The map below shows estimated turnout by block group.
How 97233 compares
Among zip codes within 15 miles, 97233 leans more Democratic than 22 of 58 neighbors.
97233 runs about 10 points more Democratic than Oregon as a whole.
Politics vary noticeably by block within 97233. The northwest side is the most Democratic-leaning (D+31) and the southeast side is the least Democratic-leaning (D+16), a spread of about 15 points.
Why 97233 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 97233, not a ranked or complete list of what matters most.
Dense areas vote Democratic. More than 99% of residents in 97233 live in densely developed areas, about 63 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 42% of adults in 97233 have never been married, above 90% of zip codes.
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; 97233, 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 97233 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 97233 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. Renters vote less often than owners, and about 50% of households in 97233 rent, about 25 points above the U.S. average of 25%. Low high-school completion lines up with lower turnout, and about 81% of adults in 97233 have completed high school, below 90% of zip codes. 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.