Corn Hill, Rochester, NY Political Map | Democrat & Republican Areas in Corn Hill

Corn Hill is a Democratic stronghold. About 81% of voters here vote Democratic and 19% Republican.

 
Corn Hill, Rochester, NY block-group political-lean map
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About 41% of adults in Corn Hill typically vote, below the U.S. average of about 62%. Among adults in Corn Hill, ~33% vote Democratic, ~8% Republican, and ~59% don't vote. The map below shows estimated turnout by block group.

Corn Hill, Rochester, NY block-group voter-turnout map
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How Corn Hill compares

Among neighborhoods within 5 miles, Corn Hill leans more Democratic than 16 of 27 neighbors.

Corn Hill runs about 49 points more Democratic than New York as a whole.

Politics vary noticeably by block within Corn Hill. The southwest side is the most Democratic-leaning (D+76) and the northeast side is the least Democratic-leaning (D+42), a spread of about 34 points.

Why Corn Hill leans the way it does

This analysis examined 14,881 data points per neighborhood to find what predicts political lean and turnout. The items below are a few correlations that stood out for Corn Hill, not a ranked or complete list of what matters most.

Areas with many never-married adults vote Democratic. About 61% of adults in Corn Hill have never been married, well above similar-sized neighborhoods (around 40%).

Walkability and Democratic lean

Places with a highly walkable street grid tend to lean Democratic; Corn Hill, Rochester, NY 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 Corn Hill looks the way it does

Renters vote less often than owners. About 63% of households in Corn Hill rent, about 38 points above the U.S. average of 25%. 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.