Three Mile Bay, NY Political Map | Democrat & Republican Areas in Three Mile Bay

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

Three Mile Bay leans Republican by roughly 22 points: about 39% of voters vote Democratic and 61% Republican.

 

About 94% of adults in Three Mile Bay typically vote, above the U.S. average of about 62%. Among adults in Three Mile Bay, ~37% vote Democratic, ~58% Republican, and ~5% don't vote. The map below shows estimated turnout by block group.

How Three Mile Bay compares

Among cities within 25 miles, Three Mile Bay leans more Republican than 11 of 58 neighbors.

Three Mile Bay runs about 34 points more Republican than New York as a whole. New York leans Democratic overall, while Three Mile Bay is one of the few Republican-leaning pockets.

Why Three Mile Bay 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 Three Mile Bay, not a ranked or complete list of what matters most.

Three Mile Bay votes against the grain of New York. New York leans Democratic overall, while Three Mile Bay runs about 34 points more Republican.

Cancer-screening access and voter turnout

Places with high colon-cancer-screening access tend to turn out at a higher rate; Three Mile Bay, NY sits in the top tenth nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.

Why turnout in Three Mile Bay looks the way it does

Areas with strong routine healthcare access turn out at higher rates. Three Mile Bay 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 67%, about 7 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 95% of households in Three Mile Bay own their home, about 20 points above the U.S. average of 75%. High high-school completion lines up with higher turnout, and more than 99% of adults in Three Mile Bay have completed high school, in the top fraction 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.