Genesee County leans Republican by roughly 30 points: about 35% of voters vote Democratic and 65% Republican.
About 71% of adults in Genesee County typically vote, above the U.S. average of about 62%. Among adults in Genesee County, ~25% vote Democratic, ~46% Republican, and ~29% don't vote. The map below shows estimated turnout by block group.
How Genesee County compares
Among counties within 50 miles, Genesee County leans more Republican than 5 of 7 neighbors.
Genesee County runs about 42 points more Republican than New York as a whole. New York leans Democratic overall, while Genesee County is one of the few Republican-leaning pockets.
Politics vary noticeably by city within Genesee County. The southwest side is the most Republican-leaning (R+49) and the east side is the least Republican-leaning (R+27), a spread of about 22 points.
Why Genesee 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 Genesee County, not a ranked or complete list of what matters most.
Genesee County votes against the grain of New York. New York leans Democratic overall, while Genesee County runs about 42 points more Republican.
Cancer-screening access and voter turnout
Places with high colon-cancer-screening access tend to turn out at a higher rate; Genesee County, NY sits in the top quarter nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in Genesee County looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Genesee 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 71% of counties. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Orleans County, NY R+32
- Wyoming County, NY R+39
- Livingston County, NY R+19
- Monroe County, NY D+25
- Erie County, NY D+15
- Niagara County, NY R+10
- Ontario County, NY R+2
- Wayne County, NY R+23
- Allegany County, NY R+39
- Cattaraugus County, NY R+29
Counties with Similar Populations
- Columbia County, WI R+17
- Otsego County, NY R+5
- Pike County, PA R+21
- Lawrence County, OH R+50
- Pickaway County, OH R+41
- Huron County, OH R+44
- Carson City, NV R+11
- Newton County, MO R+54
- Pike County, KY R+63
- Kenai Peninsula Borough, AK R+27
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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.