98645 leans heavily Republican by roughly 38 points: about 31% of voters vote Democratic and 69% Republican.
About 82% of adults in 98645 typically vote, above the U.S. average of about 62%. Among adults in 98645, ~25% vote Democratic, ~57% Republican, and ~18% don't vote. The map below shows estimated turnout by block group.
How 98645 compares
Among zip codes within 15 miles, 98645 leans more Republican than 5 of 9 neighbors.
98645 runs about 56 points more Republican than Washington as a whole. Washington leans Democratic overall, while 98645 is one of the few Republican-leaning pockets.
Why 98645 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 98645, not a ranked or complete list of what matters most.
98645 votes against the grain of Washington. Washington leans Democratic overall, while 98645 runs about 56 points more Republican. Car-dependent areas vote Republican, and about 84% of residents in 98645 drive to work alone, above 83% of zip codes.
Never-married share, developed land, and voter turnout
Places that combine a low never-married share and a rural land-use pattern tend to turn out at a higher rate, as 98645, WA does.
Why turnout in 98645 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 98645 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 62%. 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 Washington Secretary of State, Elections, 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.