Three Rivers leans slightly Democratic by roughly 6 points: about 53% of voters vote Democratic and 47% Republican.
About 87% of adults in Three Rivers typically vote, above the U.S. average of about 62%. Among adults in Three Rivers, ~46% vote Democratic, ~41% Republican, and ~13% don't vote. The map below shows estimated turnout by block group.
How Three Rivers compares
Among cities within 25 miles, Three Rivers leans more Democratic than 100 of 113 neighbors.
Three Rivers runs about 6 points more Republican than New York as a whole.
Politics vary noticeably by neighborhood within Three Rivers. The southwest side runs the most Democratic (D+12) and the north side runs the most Republican (R+24), a spread of about 36 points.
Why Three Rivers 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 Three Rivers, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 39% of adults in Three Rivers hold a bachelor's degree, about 11 points above the U.S. average of 28%. Dense areas vote Democratic, and Three Rivers sits in the top fifth on density (about 34%, above 82% of cities).
Cancer-screening access and voter turnout
Places with high colon-cancer-screening access tend to turn out at a higher rate; Three Rivers, NY sits in the top tenth nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in Three Rivers looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Three Rivers 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%. High high-school completion lines up with higher turnout, and about 98% of adults in Three Rivers have completed high school, above 96% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Baldwinsville, NY D+4
- Phoenix, NY R+18
- Sand Ridge, NY R+20
- Wrights Corners, NY R+32
- Pennellville, NY R+23
- Little Utica, NY R+28
- Hinmansville, NY R+30
- Liverpool, NY D+13
- Clay, NY Even
- Warners, NY R+17
Cities with Similar Populations
- Limestone, OK R+58
- West Bay, FL R+41
- Lake Murray of Richland, SC R+30
- Great Valley, NY R+41
- Morristown, MN R+41
- Manly, IA R+34
- Groton, SD R+52
- Smartville, CA R+30
- Ansted, WV R+59
- Plains, GA R+5
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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.