Hamilton County leans Republican by roughly 26 points: about 37% of voters vote Democratic and 63% Republican.
About 73% of adults in Hamilton County typically vote, above the U.S. average of about 62%. Among adults in Hamilton County, ~27% vote Democratic, ~46% Republican, and ~27% don't vote. The map below shows estimated turnout by block group.
How Hamilton County compares
Among counties within 50 miles, Hamilton County leans more Republican than 2 of 4 neighbors.
Hamilton County runs about 38 points more Republican than New York as a whole. New York leans Democratic overall, while Hamilton County is one of the few Republican-leaning pockets.
Politics vary noticeably by city within Hamilton County. The northeast side runs the most Democratic (D+3) and the southwest side runs the most Republican (R+49), a spread of about 52 points.
Why Hamilton 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 Hamilton County, not a ranked or complete list of what matters most.
Rural areas vote Republican. About 1% of residents in Hamilton County live in densely developed areas, about 35 points below the New York average of 36%. Hamilton County runs against the grain of New York, a Republican-leaning pocket in a Democratic-leaning state.
Population density and Republican lean
Places with low population density tend to lean Republican; Hamilton County, NY sits in the bottom tenth nationally on this measure.
Why turnout in Hamilton County looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Hamilton County 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 64%, above 72% of counties. Homeowners vote more often than renters, and about 82% of households in Hamilton County own their home, above 89% of counties. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Warren County, NY R+2
- Fulton County, NY R+28
- Montgomery County, NY R+24
- Herkimer County, NY R+29
- Washington County, NY R+23
- Saratoga County, NY Even
- Essex County, NY R+5
- Lewis County, NY R+48
- Oneida County, NY R+13
- Schenectady County, NY D+17
Counties with Similar Populations
- Sheridan County, NE R+68
- Lincoln County, ID R+63
- Garfield County, UT R+63
- Crosby County, TX R+50
- Scott County, KS R+67
- Beaver County, OK R+77
- Big Stone County, MN R+33
- Thayer County, NE R+61
- Kingsbury County, SD R+50
- Pulaski County, IL R+26
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.