98023 leans Democratic by roughly 30 points: about 65% of voters vote Democratic and 35% Republican.
About 67% of adults in 98023 typically vote, near the U.S. average of about 62%. Among adults in 98023, ~44% vote Democratic, ~23% Republican, and ~33% don't vote. The map below shows estimated turnout by block group.
How 98023 compares
Among zip codes within 15 miles, 98023 leans more Democratic than 34 of 58 neighbors.
98023 runs about 11 points more Democratic than Washington as a whole.
Politics vary noticeably by block within 98023. The east side is the most Democratic-leaning (D+37) and the southwest side is the least Democratic-leaning (D+24), a spread of about 13 points.
Why 98023 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 98023, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 90% of residents in 98023 live in densely developed areas, about 54 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 36% of adults in 98023 have never been married, above 82% of zip codes.
Population density and Democratic lean
Places with high population density tend to lean Democratic; 98023, WA sits in the top tenth nationally on this measure.
Why turnout in 98023 looks the way it does
Turnout in 98023 sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. 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.