King of Prussia leans Democratic by roughly 24 points: about 62% of voters vote Democratic and 38% Republican.
About 79% of adults in King of Prussia typically vote, above the U.S. average of about 62%. Among adults in King of Prussia, ~49% vote Democratic, ~30% Republican, and ~21% don't vote. The map below shows estimated turnout by block group.
How King of Prussia compares
Among cities within 25 miles, King of Prussia leans more Democratic than 161 of 239 neighbors.
King of Prussia runs about 26 points more Democratic than Pennsylvania as a whole. Pennsylvania is roughly evenly split, and King of Prussia sits clearly on the Democratic side.
Politics vary noticeably by neighborhood within King of Prussia. The southwest side is the most Democratic-leaning (D+33) and the north side is the least Democratic-leaning (D+16), a spread of about 17 points.
Why King of Prussia 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 King of Prussia, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 92% of residents in King of Prussia live in densely developed areas, about 56 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and King of Prussia sits in the top quarter (about 63%, above 97% of cities). A high never-married share predicts Democratic voting, and about 36% of adults in King of Prussia have never been married, above 88% of cities.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; King of Prussia, PA sits in the top tenth nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in King of Prussia looks the way it does
Areas with strong routine healthcare access turn out at higher rates. King of Prussia 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 98% of adults in King of Prussia have completed high school, above 94% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Bridgeport, PA D+19
- Wayne, PA D+31
- Norristown, PA D+31
- Audubon, PA D+20
- West Conshohocken, PA D+26
- Devon, PA D+32
- Chesterbrook, PA D+34
- Villanova, PA D+27
- Conshohocken, PA D+26
- Eagleville, PA D+43
Cities with Similar Populations
- Patterson, CA D+3
- Garden City, MI R+9
- Temescal Valley, CA R+12
- Oakdale, MN D+17
- Royersford, PA D+5
- Ilchester, MD D+35
- Elk River, MN R+19
- Columbus, NE R+42
- North Attleboro, MA D+8
- Hudson, WI R+8
Sources and methodology
Precinct-level voting records used to fit the model come from Pennsylvania Department of State, Bureau of 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.