East Rochester, NY Political Map | Democrat & Republican Areas in East Rochester

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

East Rochester leans Democratic by roughly 18 points: about 59% of voters vote Democratic and 41% Republican.

 

About 69% of adults in East Rochester typically vote, above the U.S. average of about 62%. Among adults in East Rochester, ~41% vote Democratic, ~28% Republican, and ~31% don't vote. The map below shows estimated turnout by block group.

How East Rochester compares

Among cities within 25 miles, East Rochester leans more Democratic than 94 of 100 neighbors.

East Rochester runs about 5 points more Democratic than New York as a whole.

Politics vary noticeably by neighborhood within East Rochester. The northwest side is the most Democratic-leaning (D+26) and the west side is the least Democratic-leaning (D+14), a spread of about 12 points.

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

Dense areas vote Democratic. About 98% of residents in East Rochester live in densely developed areas, about 62 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and East Rochester sits in the top quarter (about 36%, above 84% of cities). A high never-married share predicts Democratic voting, and about 47% of adults in East Rochester have never been married, above 97% of cities.

Paved land cover and Democratic lean

Places with extensive paved surfaces tend to lean Democratic; East Rochester, NY sits in the top tenth nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.

Why turnout in East Rochester looks the way it does

Areas with strong routine healthcare access turn out at higher rates. East Rochester 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 69%, about 9 points above the U.S. average of 60%. 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 New York State Board 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.