97707 is a true toss-up. About 50% of voters here vote Democratic and 50% Republican.
About more than 99% of adults in 97707 typically vote, above the U.S. average of about 62%. Among adults in 97707, ~54% vote Democratic, ~55% Republican, and ~-9% don't vote. The map below shows estimated turnout by block group.
How 97707 compares
Among zip codes within 15 miles, 97707 sits roughly in the middle of the political spectrum, with 1 neighbors leaning further in the place's direction and 1 leaning the other way.
97707 runs about 15 points more Republican than Oregon as a whole. Oregon leans Democratic overall, while 97707 sits closer to the political middle.
Politics vary noticeably by block within 97707. The north side runs the most Democratic (D+39) and the southeast side runs the most Republican (R+32), a spread of about 71 points.
Why 97707 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 97707, not a ranked or complete list of what matters most.
97707 votes against the grain of Oregon. Oregon leans Democratic overall, while 97707 runs about 15 points more Republican.
High-school completion, uninsured rate, and voter turnout
Places that combine high-school-completion-heavy adults and a low uninsured rate tend to turn out at a higher rate, as 97707, OR does.
Why turnout in 97707 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 97707 is in the top quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 72%, about 12 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 88% of households in 97707 own their home, above 81% of zip codes. High high-school completion lines up with higher turnout, and about 98% of adults in 97707 have completed high school, above 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.