98331 is a true toss-up. About 50% of voters here vote Democratic and 50% Republican.
About 65% of adults in 98331 typically vote, near the U.S. average of about 62%. Among adults in 98331, ~32% vote Democratic, ~33% Republican, and ~35% don't vote. The map below shows estimated turnout by block group.
How 98331 compares
Among zip codes within 15 miles, 98331 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.
98331 runs about 18 points more Republican than Washington as a whole.
Politics vary noticeably by block within 98331. The south side runs the most Democratic (D+11) and the north side runs the most Republican (R+2), a spread of about 14 points.
Why 98331 leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in 98331. The lean here lands roughly where demographic data alone would predict.
Park access and Democratic lean
Places with heavy park coverage tend to lean Democratic; 98331, WA sits above the national average on this measure. Park access does not change how people vote; it tends to track denser, higher-income areas.
Why turnout in 98331 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 98331 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 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.