Purchase leans Democratic by roughly 20 points: about 60% of voters vote Democratic and 40% Republican.
About 58% of adults in Purchase typically vote, near the U.S. average of about 62%. Among adults in Purchase, ~35% vote Democratic, ~23% Republican, and ~42% don't vote. The map below shows estimated turnout by block group.
How Purchase compares
Among cities within 25 miles, Purchase leans more Democratic than 220 of 276 neighbors.
Purchase runs about 7 points more Democratic than New York as a whole.
Politics vary noticeably by neighborhood within Purchase. The northeast side is the most Democratic-leaning (D+41) and the southeast side is the least Democratic-leaning (D+2), a spread of about 38 points.
Why Purchase 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 Purchase, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 81% of residents in Purchase live in densely developed areas, about 45 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and Purchase sits in the top quarter (about 64%, above 98% of cities). A high never-married share predicts Democratic voting, and about 69% of adults in Purchase have never been married, in the top fraction of cities.
Population density and Democratic lean
Places with high population density tend to lean Democratic; Purchase, NY sits in the top tenth nationally on this measure.
Why turnout in Purchase looks the way it does
Crowded housing lines up with lower turnout. About 4% of homes in Purchase have more than one occupant per room, above 84% of cities. Strong routine healthcare access lines up with higher turnout, and Purchase sits in the top quarter on routine-care measures. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Rye Brook, NY D+19
- West Harrison, NY D+27
- Harrison, NY R+2
- White Plains, NY D+37
- Port Chester, NY D+18
- Valhalla, NY D+4
- Rye, NY D+22
- Hartsdale, NY D+24
- Scarsdale, NY D+33
- Elmsford, NY D+36
Cities with Similar Populations
- Century, FL R+30
- Cape Neddick, ME D+7
- Chandler, IN R+40
- Henniker, NH D+17
- Whites Creek, TN D+21
- Hawkins, TX R+57
- Saranac, MI R+35
- Manakin-Sabot, VA R+11
- Cramerton, NC R+24
- Three Points, AZ R+16
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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.