97305 is a true toss-up. About 52% of voters here vote Democratic and 48% Republican.
About 52% of adults in 97305 typically vote, below the U.S. average of about 62%. Among adults in 97305, ~27% vote Democratic, ~25% Republican, and ~48% don't vote. The map below shows estimated turnout by block group.
How 97305 compares
Among zip codes within 15 miles, 97305 leans more Democratic than 12 of 18 neighbors.
97305 runs about 11 points more Republican than Oregon as a whole.
Politics vary noticeably by block within 97305. The southwest side runs the most Democratic (D+21) and the northeast side runs the most Republican (R+32), a spread of about 53 points.
Why 97305 leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in 97305. The lean here lands roughly where demographic data alone would predict.
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; 97305, 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 97305 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 97305 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 45% of households in 97305 rent, about 20 points above the U.S. average of 25%. Low high-school completion lines up with lower turnout, and about 77% of adults in 97305 have completed high school, below 94% 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.