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

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

Thornwood leans slightly Republican by roughly 10 points: about 45% of voters vote Democratic and 55% Republican.

 

About 82% of adults in Thornwood typically vote, above the U.S. average of about 62%. Among adults in Thornwood, ~37% vote Democratic, ~45% Republican, and ~18% don't vote. The map below shows estimated turnout by block group.

How Thornwood compares

Among cities within 25 miles, Thornwood leans more Republican than 191 of 244 neighbors.

Thornwood runs about 23 points more Republican than New York as a whole. New York leans Democratic overall, while Thornwood is one of the few Republican-leaning pockets.

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

Thornwood votes Republican even though it is densely developed (about 83%, far above the New York average of 36%). State and regional patterns outweigh the Democratic lean that density usually predicts here. A high family-household share predicts Republican voting, and about 80% of households in Thornwood are family households, above 90% of cities. Thornwood runs against the grain of New York, a Republican-leaning pocket in a Democratic-leaning state.

Walkability and Democratic lean

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

Areas with strong routine healthcare access turn out at higher rates. Thornwood 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 76%, about 16 points above the U.S. average of 60%. 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.