Chatham, NY Political Map | Democrat & Republican Areas in Chatham

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

Chatham leans Democratic by roughly 24 points: about 62% of voters vote Democratic and 38% Republican.

 

About 78% of adults in Chatham typically vote, above the U.S. average of about 62%. Among adults in Chatham, ~48% vote Democratic, ~30% Republican, and ~22% don't vote. The map below shows estimated turnout by block group.

How Chatham compares

Among cities within 25 miles, Chatham leans more Democratic than 98 of 131 neighbors.

Chatham runs about 11 points more Democratic than New York as a whole.

Politics vary noticeably by neighborhood within Chatham. The southeast side is the most Democratic-leaning (D+44) and the west side is the least Democratic-leaning (D+11), a spread of about 32 points.

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

Areas with high college attainment vote Democratic. About 49% of adults in Chatham hold a bachelor's degree, about 20 points above the U.S. average of 28%.

Population density and Democratic lean

Places with high population density tend to lean Democratic; Chatham, NY sits above the national average on this measure.

Why turnout in Chatham looks the way it does

Areas with strong routine healthcare access turn out at higher rates. Chatham 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 71%, about 11 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 96% of adults in Chatham have completed high school, above 84% 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.