97620 is a Republican stronghold. About 15% of voters here vote Democratic and 85% Republican.
About 61% of adults in 97620 typically vote, near the U.S. average of about 62%. Among adults in 97620, ~9% vote Democratic, ~52% Republican, and ~39% don't vote. The map below shows estimated turnout by block group.
How 97620 compares
97620 runs about 83 points more Republican than Oregon as a whole. Oregon leans Democratic overall, while 97620 is one of the few Republican-leaning pockets.
Politics vary noticeably by block within 97620. The west side is the most Republican-leaning (R+71) and the south side is the least Republican-leaning (R+41), a spread of about 30 points.
Why 97620 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 97620, not a ranked or complete list of what matters most.
97620 votes against the grain of Oregon. Oregon leans Democratic overall, while 97620 runs about 83 points more Republican.
Developed land and Republican lean
Places with a rural land-use pattern tend to lean Republican; 97620, OR sits in the bottom tenth nationally on this measure. Developed land does not change how people vote; it mostly reflects how urban a place is.
Why turnout in 97620 looks the way it does
Renters vote less often than owners. About 37% of households in 97620 rent, about 12 points above the U.S. average of 25%. Low high-school completion lines up with lower turnout, and about 97% of adults in 97620 have completed high school, above 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.