Ardsley leans Democratic by roughly 30 points: about 65% of voters vote Democratic and 35% Republican.
About 82% of adults in Ardsley typically vote, above the U.S. average of about 62%. Among adults in Ardsley, ~53% vote Democratic, ~29% Republican, and ~18% don't vote. The map below shows estimated turnout by block group.
How Ardsley compares
Among cities within 25 miles, Ardsley leans more Democratic than 266 of 305 neighbors.
Ardsley runs about 17 points more Democratic than New York as a whole.
Why Ardsley 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 Ardsley, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 78% of adults in Ardsley hold a bachelor's degree, about 50 points above the U.S. average of 28%. Dense areas vote Democratic, and Ardsley sits in the top fifth on density (about 95%, above 98% of cities).
Population density and Democratic lean
Places with high population density tend to lean Democratic; Ardsley, NY sits in the top tenth nationally on this measure.
Why turnout in Ardsley looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Ardsley 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 77%, about 17 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 98% of adults in Ardsley have completed high school, above 94% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Dobbs Ferry, NY D+43
- Hartsdale, NY D+24
- Irvington, NY D+40
- Hastings-on-Hudson, NY D+51
- Scarsdale, NY D+33
- Elmsford, NY D+36
- Eastchester, NY D+9
- White Plains, NY D+37
- Tuckahoe, NY D+13
- Tarrytown, NY D+38
Cities with Similar Populations
- Emmitsburg, MD R+16
- Landisville, PA R+5
- Hearne, TX R+3
- Dacono, CO R+16
- Hapeville, GA D+47
- Linglestown, PA R+9
- Elba, AL R+46
- Clayton, GA R+56
- Rogersville, AL R+73
- Kingfisher, OK R+56
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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.