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

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

Groton leans slightly Republican by roughly 12 points: about 44% of voters vote Democratic and 56% Republican.

 

About 74% of adults in Groton typically vote, above the U.S. average of about 62%. Among adults in Groton, ~33% vote Democratic, ~42% Republican, and ~25% don't vote. The map below shows estimated turnout by block group.

How Groton compares

Among cities within 25 miles, Groton leans more Republican than 45 of 115 neighbors.

Groton runs about 24 points more Republican than New York as a whole. New York leans Democratic overall, while Groton is one of the few Republican-leaning pockets.

Politics vary noticeably by neighborhood within Groton. The southwest side runs the most Democratic (D+8) and the northeast side runs the most Republican (R+32), a spread of about 40 points.

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

Groton votes against the grain of New York. New York leans Democratic overall, while Groton runs about 24 points more Republican.

Cholesterol-screening access and voter turnout

Places with high cholesterol-screening access tend to turn out at a higher rate; Groton, NY sits in the top quarter nationally on this measure. Cholesterol screening does not drive turnout; it reflects income, insurance, and healthcare access.

Why turnout in Groton looks the way it does

Areas with strong routine healthcare access turn out at higher rates. Groton 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 60%, below 55% of cities. Learn more about the findings and methodology on the political spectrum map.

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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.