97905 is a Republican stronghold. About 21% of voters here vote Democratic and 79% Republican.
About 63% of adults in 97905 typically vote, near the U.S. average of about 62%. Among adults in 97905, ~13% vote Democratic, ~50% Republican, and ~37% don't vote. The map below shows estimated turnout by block group.
How 97905 compares
97905 runs about 72 points more Republican than Oregon as a whole. Oregon leans Democratic overall, while 97905 is one of the few Republican-leaning pockets.
Why 97905 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 97905, not a ranked or complete list of what matters most.
97905 votes against the grain of Oregon. Oregon leans Democratic overall, while 97905 runs about 72 points more Republican. Low college attainment predicts Republican voting, and 97905 sits in the bottom quarter (about 15%, below 80% of zip codes).
Population density and Republican lean
Places with low population density tend to lean Republican; 97905, OR sits in the bottom tenth nationally on this measure.
Why turnout in 97905 looks the way it does
Turnout in 97905 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
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.