97042 leans heavily Republican by roughly 34 points: about 33% of voters vote Democratic and 67% Republican.
About 83% of adults in 97042 typically vote, above the U.S. average of about 62%. Among adults in 97042, ~27% vote Democratic, ~56% Republican, and ~17% don't vote. The map below shows estimated turnout by block group.
How 97042 compares
Among zip codes within 15 miles, 97042 leans more Republican than 16 of 17 neighbors.
97042 runs about 48 points more Republican than Oregon as a whole. Oregon leans Democratic overall, while 97042 is one of the few Republican-leaning pockets.
Why 97042 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 97042, not a ranked or complete list of what matters most.
97042 votes against the grain of Oregon. Oregon leans Democratic overall, while 97042 runs about 48 points more Republican. A high family-household share predicts Republican voting, and about 85% of households in 97042 are family households, above 97% of zip codes.
Homeownership and voter turnout
Places with homeowner-heavy households tend to turn out at a higher rate; 97042, OR sits in the top tenth nationally on this measure.
Why turnout in 97042 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 97042 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 70%, about 10 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 92% of households in 97042 own their home, about 17 points above the U.S. average of 75%. 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.