Collegeville, PA Political Map | Democrat & Republican Areas in Collegeville

By the BestNeighborhood data science team. Last updated May 2026.

Collegeville leans slightly Democratic by roughly 8 points: about 54% of voters vote Democratic and 46% Republican.

 

About 92% of adults in Collegeville typically vote, above the U.S. average of about 62%. Among adults in Collegeville, ~50% vote Democratic, ~42% Republican, and ~8% don't vote. The map below shows estimated turnout by block group.

How Collegeville compares

Among cities within 25 miles, Collegeville leans more Democratic than 109 of 210 neighbors.

Collegeville runs about 10 points more Democratic than Pennsylvania as a whole.

Politics vary noticeably by neighborhood within Collegeville. The southwest side is the most Democratic-leaning (D+12) and the southeast side is the least Democratic-leaning (Even), a spread of about 11 points.

Why Collegeville 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 Collegeville, not a ranked or complete list of what matters most.

Areas with high college attainment vote Democratic. About 62% of adults in Collegeville hold a bachelor's degree, about 34 points above the U.S. average of 28%. Dense areas vote Democratic, and Collegeville sits in the top fifth on density (about 66%, above 91% of cities). A high never-married share predicts Democratic voting, and about 30% of adults in Collegeville have never been married, above 75% of cities.

Preventive-care access and voter turnout

Places with strong routine preventive-care access tend to turn out at a higher rate; Collegeville, PA sits in the top tenth nationally on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.

Why turnout in Collegeville looks the way it does

Areas with strong routine healthcare access turn out at higher rates. Collegeville 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 75%, about 15 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 97% of adults in Collegeville have completed high school, above 92% of cities. Learn more about the findings and methodology on the political spectrum map.

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.