North Haven leans heavily Democratic by roughly 32 points: about 66% of voters vote Democratic and 34% Republican.
About 95% of adults in North Haven typically vote, above the U.S. average of about 62%. Among adults in North Haven, ~63% vote Democratic, ~32% Republican, and ~5% don't vote. The map below shows estimated turnout by block group.
How North Haven compares
Among cities within 25 miles, North Haven leans more Democratic than 38 of 41 neighbors.
North Haven runs about 19 points more Democratic than New York as a whole.
Why North Haven 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 North Haven, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 64% of adults in North Haven hold a bachelor's degree, about 35 points above the U.S. average of 28%. Dense areas vote Democratic, and North Haven sits in the top fifth on density (about 37%, above 83% of cities).
Population density, never-married share, and Democratic lean
Places that combine high population density and a low never-married share tend to lean Democratic, as North Haven, NY does.
Why turnout in North Haven looks the way it does
Areas with strong routine healthcare access turn out at higher rates. North Haven 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 74%, about 14 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 92% of households in North Haven own their home, about 17 points above the U.S. average of 75%. High high-school completion lines up with higher turnout, and about 99% of adults in North Haven have completed high school, above 97% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Sag Harbor, NY D+24
- Noyack, NY D+14
- Shelter Island, NY D+26
- Shelter Island Heights, NY D+31
- Bridgehampton, NY D+26
- Northwest Harbor, NY D+23
- Wainscott, NY D+20
- Sagaponack, NY D+30
Cities with Similar Populations
- Goodland, IN R+57
- Fort McDowell, AZ D+43
- Bodega, CA D+44
- Tabor, SD R+59
- Leetsdale, PA D+11
- Courtland, MN R+51
- Illiopolis, IL R+44
- Franklin, WV R+50
- Vintondale, PA R+56
- Cannon Air Force Base, NM R+55
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.