South Nyack is a Democratic stronghold. About 75% of voters here vote Democratic and 25% Republican.
About 60% of adults in South Nyack typically vote, near the U.S. average of about 62%. Among adults in South Nyack, ~45% vote Democratic, ~15% Republican, and ~40% don't vote. The map below shows estimated turnout by block group.
How South Nyack compares
Among cities within 25 miles, South Nyack leans more Democratic than 278 of 284 neighbors.
South Nyack runs about 38 points more Democratic than New York as a whole.
Politics vary noticeably by neighborhood within South Nyack. The north side is the most Democratic-leaning (D+61) and the south side is the least Democratic-leaning (D+42), a spread of about 19 points.
Why South Nyack 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 South Nyack, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 63% of residents in South Nyack live in densely developed areas, about 27 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and South Nyack sits in the top quarter (about 61%, above 97% of cities). A high never-married share predicts Democratic voting, and about 43% of adults in South Nyack have never been married, above 96% of cities.
Population density and Democratic lean
Places with high population density tend to lean Democratic; South Nyack, NY sits in the top tenth nationally on this measure.
Why turnout in South Nyack looks the way it does
Renters vote less often than owners. About 35% of households in South Nyack rent, about 10 points above the U.S. average of 25%. Strong routine healthcare access lines up with higher turnout, and South Nyack sits in the top quarter on routine-care measures. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Nyack, NY D+51
- Grand View-on-Hudson, NY D+39
- Upper Nyack, NY D+51
- Blauvelt, NY R+13
- Valley Cottage, NY D+4
- Piermont, NY D+31
- West Nyack, NY R+8
- Sleepy Hollow, NY D+30
- Orangeburg, NY R+5
- Tarrytown, NY D+38
Cities with Similar Populations
- Waterville, MN R+33
- Whitesburg, TN R+72
- Markleville, IN R+48
- Concord, MI R+35
- Crescent, PA R+13
- Jerome, MI R+33
- Mexico, ME R+34
- Coats Crossroads, NC R+32
- Babson Park, FL R+51
- Newton, TX R+32
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.