Sullivan is a true toss-up. About 52% of voters here vote Democratic and 48% Republican. These figures are model estimates: New Hampshire did not have precinct-level voting records available for training, so the numbers above come from demographic and health features rather than local ground truth.
About 80% of adults in Sullivan typically vote, above the U.S. average of about 62%. Among adults in Sullivan, ~42% vote Democratic, ~39% Republican, and ~19% don't vote. The map below shows estimated turnout by block group.
How Sullivan compares
Among cities within 25 miles, Sullivan leans more Democratic than 70 of 100 neighbors.
Politically, Sullivan sits close to the rest of New Hampshire.
Why Sullivan leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in Sullivan. None of them point strongly toward either party.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; Sullivan, NH sits in the top quarter nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in Sullivan looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Sullivan 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 71%, about 11 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 93% of households in Sullivan own their home, about 18 points above the U.S. average of 75%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Munsonville, NH D+4
- Nelson, NH D+6
- Gilsum, NH R+18
- Keene, NH D+22
- Surry, NH R+16
- Marlborough, NH R+8
- South Stoddard, NH Even
- Harrisville, NH D+13
- North Swanzey, NH R+9
- Stoddard, NH Even
Cities with Similar Populations
- Glenn Springs, SC R+66
- Cold Spring, NJ R+21
- Ona, FL R+68
- Dartmont, WV R+68
- Rush Valley, UT R+76
- Fossil, OR R+50
- Johnsonville, IL R+76
- Shickley, NE R+66
- Banco, VA R+37
- Union, WI R+7
All Local Stats
Home Services
Sources and methodology
Precinct-level voting records used to fit the model come from New Hampshire Secretary of State, Elections Division, 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. NH did not have precinct-level voting records available for training, so the figures here come from extrapolation across demographic, health, and land-use features rather than local ground truth. Full methodology and findings: political spectrum map.
Methodology reviewed by the BestNeighborhood data team. Last updated May 2026.