South Park leans heavily Democratic by roughly 50 points: about 75% of voters vote Democratic and 25% Republican.
About 49% of adults in South Park typically vote, below the U.S. average of about 62%. Among adults in South Park, ~37% vote Democratic, ~12% Republican, and ~51% don't vote. The map below shows estimated turnout by block group.
How South Park compares
Among neighborhoods within 5 miles, South Park leans more Democratic than 2 of 19 neighbors.
South Park runs about 31 points more Democratic than Washington as a whole.
Why South Park leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in South Park. The lean here lands roughly where demographic data alone would predict.
Cancer-screening access and voter turnout
Places with low colon-cancer-screening access tend to turn out at a lower rate; South Park, Seattle, WA sits in the bottom quarter nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in South Park looks the way it does
Areas with limited routine healthcare access turn out at lower rates. South Park is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. Low high-school completion lines up with lower turnout, and about 82% of adults in South Park have completed high school, below 82% of neighborhoods. High-crime urban areas turn out at lower rates, and South Park sits in the top 15% on a violent-crime measure. Learn more about the findings and methodology on the political spectrum map.
Nearby Neighborhoods
- Highland Park, Seattle, WA D+59
- South Delridge, Seattle, WA D+52
- Highline, Seattle, WA D+37
- Riverview, Seattle, WA D+58
- Roxhill, Seattle, WA D+67
- Brighton, Seattle, WA D+64
- Beacon Hill, Seattle, WA D+60
- Shorewood, Seattle, WA D+45
- High Point, Seattle, WA D+63
- Columbia City, Seattle, WA D+71
Neighborhoods with Similar Populations
- Lincoln, Vancouver, WA D+44
- Mission Hills, El Paso, TX D+27
- Somerset Park, Willingboro, NJ D+65
- Parkside, Portland, ME D+77
- River Bend, Des Moines, IA D+45
- Haines Corner, Lewiston, ME R+23
- Young-Lilly, Springfield, MO R+27
- Kenny, Minneapolis, MN D+64
- Caufield, Oregon City, OR R+3
- Spring Lake, Birmingham, AL D+68
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.