Olympia leans heavily Democratic by roughly 32 points: about 66% of voters vote Democratic and 34% Republican.
About 82% of adults in Olympia typically vote, above the U.S. average of about 62%. Among adults in Olympia, ~54% vote Democratic, ~28% Republican, and ~18% don't vote. The map below shows estimated turnout by block group.
How Olympia compares
Among cities within 25 miles, Olympia leans more Democratic than 49 of 53 neighbors.
Olympia runs about 13 points more Democratic than Washington as a whole.
Politics vary noticeably by neighborhood within Olympia. The north side is the most Democratic-leaning (D+52) and the southwest side is the least Democratic-leaning (D+3), a spread of about 49 points.
Why Olympia 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 Olympia, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 62% of residents in Olympia live in densely developed areas, about 25 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and Olympia sits in the top quarter (about 46%, above 91% of cities).
Population density and Democratic lean
Places with high population density tend to lean Democratic; Olympia, WA sits in the top tenth nationally on this measure.
Why turnout in Olympia looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Olympia 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%. High high-school completion lines up with higher turnout, and about 96% of adults in Olympia have completed high school, above 81% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Tumwater, WA D+31
- Lacey, WA D+23
- Kellys Korner, WA R+5
- Nisqually Indian Community, WA D+15
- Littlerock, WA R+8
- Dupont, WA D+13
- Anderson Island, WA D+13
- Tenino, WA R+13
- Longbranch, WA D+3
- Wauna, WA D+18
Cities with Similar Populations
- Miramar, FL D+37
- Kalamazoo, MI D+29
- West Valley City, UT D+8
- Fullerton, CA D+11
- Cedar Rapids, IA D+15
- Lansing, MI D+38
- Elizabeth, NJ D+17
- Hampton, VA D+39
- Lafayette, LA R+11
- Denton, TX D+9
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.