97633 leans heavily Republican by roughly 48 points: about 26% of voters vote Democratic and 74% Republican.
About 57% of adults in 97633 typically vote, near the U.S. average of about 62%. Among adults in 97633, ~15% vote Democratic, ~42% Republican, and ~43% don't vote. The map below shows estimated turnout by block group.
How 97633 compares
Among zip codes within 15 miles, 97633 leans more Republican than 2 of 4 neighbors.
97633 runs about 63 points more Republican than Oregon as a whole. Oregon leans Democratic overall, while 97633 is one of the few Republican-leaning pockets.
Politics vary noticeably by block within 97633. The west side is the most Republican-leaning (R+60) and the north side is the least Republican-leaning (R+46), a spread of about 13 points.
Why 97633 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 97633, not a ranked or complete list of what matters most.
Rural areas vote Republican. About 4% of residents in 97633 live in densely developed areas, about 27 points below the Oregon average of 31%. Low college attainment predicts Republican voting, and 97633 sits in the bottom quarter (about 13%, below 88% of zip codes). 97633 runs against the grain of Oregon, a Republican-leaning pocket in a Democratic-leaning state.
Population density and Republican lean
Places with low population density tend to lean Republican; 97633, OR sits in the bottom quarter nationally on this measure.
Why turnout in 97633 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 97633 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. 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.