Sullivan County leans slightly Republican by roughly 10 points: about 45% of voters vote Democratic and 55% Republican.
About 67% of adults in Sullivan County typically vote, near the U.S. average of about 62%. Among adults in Sullivan County, ~30% vote Democratic, ~37% Republican, and ~33% don't vote. The map below shows estimated turnout by block group.
How Sullivan County compares
Among counties within 50 miles, Sullivan County leans more Republican than 3 of 7 neighbors.
Sullivan County runs about 23 points more Republican than New York as a whole. New York leans Democratic overall, while Sullivan County is one of the few Republican-leaning pockets.
Politics vary noticeably by city within Sullivan County. The south side runs the most Democratic (Even) and the southeast side runs the most Republican (R+25), a spread of about 26 points.
Why Sullivan County leans the way it does
This analysis examined 14,881 data points per county to find what predicts political lean and turnout. The items below are a few correlations that stood out for Sullivan County, not a ranked or complete list of what matters most.
Sullivan County votes against the grain of New York. New York leans Democratic overall, while Sullivan County runs about 23 points more Republican.
Non-English at home and voter turnout
Places with a low non-English-at-home share tend to turn out at a higher rate; Sullivan County, NY sits in the bottom quarter nationally on this measure.
Why turnout in Sullivan County looks the way it does
Turnout in Sullivan County sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Orange County, NY R+7
- Pike County, PA R+21
- Ulster County, NY D+16
- Wayne County, PA R+36
- Delaware County, NY R+17
- Sussex County, NJ R+23
- Dutchess County, NY D+8
- Lackawanna County, PA Even
- Rockland County, NY R+14
- Putnam County, NY R+13
Counties with Similar Populations
- Oconee County, SC R+54
- Wilson County, NC D+11
- James City County, VA D+8
- Lynchburg City, VA D+10
- Chelan County, WA R+12
- Forrest County, MS R+6
- Clinton County, MI R+12
- Bedford County, VA R+43
- Augusta County, VA R+45
- Hancock County, IN R+36
All Local Stats
Home Services
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.