Bellevue leans heavily Democratic by roughly 44 points: about 72% of voters vote Democratic and 28% Republican.
About 68% of adults in Bellevue typically vote, above the U.S. average of about 62%. Among adults in Bellevue, ~49% vote Democratic, ~19% Republican, and ~32% don't vote. The map below shows estimated turnout by block group.
How Bellevue compares
Among cities within 25 miles, Bellevue leans more Democratic than 87 of 97 neighbors.
Bellevue runs about 26 points more Democratic than Washington as a whole.
Why Bellevue leans the way it does
This analysis examined 14,881 data points per city to find what predicts political lean and turnout. The items below are a few correlations that stood out for Bellevue, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 91% of residents in Bellevue live in densely developed areas, about 55 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and Bellevue sits in the top quarter (about 72%, in the top fraction of cities). A high never-married share predicts Democratic voting, and about 31% of adults in Bellevue have never been married, above 77% of cities.
Population density and Democratic lean
Places with high population density tend to lean Democratic; Bellevue, WA sits in the top tenth nationally on this measure.
Why turnout in Bellevue looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Bellevue 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 73%, about 13 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 96% of adults in Bellevue have completed high school, above 81% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Beaux Arts Village, WA D+48
- Clyde Hill, WA D+41
- Medina, WA D+29
- Mercer Island, WA D+50
- Yarrow Point, WA D+37
- Hunts Point, WA D+37
- Newcastle, WA D+43
- Redmond, WA D+45
- Sammamish, WA D+38
- Kirkland, WA D+45
Cities with Similar Populations
- Rancho Cucamonga, CA Even
- Hollywood, FL D+11
- Boynton Beach, FL D+16
- Roseville, CA R+5
- Las Cruces, NM D+5
- Victorville, CA Even
- Surprise, AZ R+20
- Beaverton, OR D+40
- Broken Arrow, OK R+16
- Pasadena, TX R+8
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.