Port Chester, NY Political Map | Democrat & Republican Areas in Port Chester

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

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

 

About 47% of adults in Port Chester typically vote, below the U.S. average of about 62%. Among adults in Port Chester, ~28% vote Democratic, ~19% Republican, and ~53% don't vote. The map below shows estimated turnout by block group.

How Port Chester compares

Among cities within 25 miles, Port Chester leans more Democratic than 222 of 285 neighbors.

Port Chester runs about 6 points more Democratic than New York as a whole.

Politics vary noticeably by neighborhood within Port Chester. The south side runs the most Democratic (D+27) and the north side runs the most Republican (Even), a spread of about 29 points.

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

Dense areas vote Democratic. About 99% of residents in Port Chester live in densely developed areas, about 62 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and Port Chester sits in the top quarter (about 36%, above 83% of cities). A high never-married share predicts Democratic voting, and about 38% of adults in Port Chester have never been married, above 91% of cities.

Walkability and Democratic lean

Places with a highly walkable street grid tend to lean Democratic; Port Chester, 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 Port Chester looks the way it does

Areas with limited routine healthcare access turn out at lower rates. Port Chester is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. Renters vote less often than owners, and about 53% of households in Port Chester rent, compared to around 27% in nearby cities. High food insecurity lines up with lower turnout, and about 22% of adults in Port Chester report food insecurity, above 86% 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 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.