Larchmont leans heavily Democratic by roughly 44 points: about 72% of voters vote Democratic and 28% Republican.
About 89% of adults in Larchmont typically vote, above the U.S. average of about 62%. Among adults in Larchmont, ~64% vote Democratic, ~25% Republican, and ~11% don't vote. The map below shows estimated turnout by block group.
How Larchmont compares
Among cities within 25 miles, Larchmont leans more Democratic than 297 of 316 neighbors.
Larchmont runs about 31 points more Democratic than New York as a whole.
Politics vary noticeably by neighborhood within Larchmont. The southwest side is the most Democratic-leaning (D+53) and the northwest side is the least Democratic-leaning (D+36), a spread of about 17 points.
Why Larchmont 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 Larchmont, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 86% of residents in Larchmont live in densely developed areas, about 50 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and Larchmont sits in the top quarter (about 84%, in the top fraction of cities).
Population density and Democratic lean
Places with high population density tend to lean Democratic; Larchmont, NY sits in the top tenth nationally on this measure.
Why turnout in Larchmont looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Larchmont 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%. High high-school completion lines up with higher turnout, and about 99% of adults in Larchmont have completed high school, above 97% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Mamaroneck, NY D+21
- New Rochelle, NY D+35
- Pelham, NY D+42
- Eastchester, NY D+9
- Tuckahoe, NY D+13
- Pelham Manor, NY D+30
- Bronxville, NY D+26
- Mount Vernon, NY D+69
- Rye, NY D+22
- Scarsdale, NY D+33
Cities with Similar Populations
- Auburn, GA R+23
- Four Corners, OR D+5
- Laurens, SC R+17
- Riverdale, IL D+80
- Great Falls, VA D+21
- Dillsburg, PA R+35
- Pinecrest, FL R+6
- Linda, CA R+9
- South Hadley, MA D+34
- Fletcher, NC R+9
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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.