Yaphank leans Republican by roughly 22 points: about 39% of voters vote Democratic and 61% Republican.
About 70% of adults in Yaphank typically vote, above the U.S. average of about 62%. Among adults in Yaphank, ~27% vote Democratic, ~43% Republican, and ~30% don't vote. The map below shows estimated turnout by block group.
How Yaphank compares
Among cities within 25 miles, Yaphank leans more Republican than 76 of 101 neighbors.
Yaphank runs about 34 points more Republican than New York as a whole. New York leans Democratic overall, while Yaphank is one of the few Republican-leaning pockets.
Politics vary noticeably by neighborhood within Yaphank. The west side is the most Republican-leaning (R+31) and the northeast side is the least Republican-leaning (R+11), a spread of about 20 points.
Why Yaphank 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 Yaphank, not a ranked or complete list of what matters most.
Yaphank votes Republican even though it is densely developed (about 43%, modestly above the New York average of 36%). State and regional patterns outweigh the Democratic lean that density usually predicts here. Yaphank runs against the grain of New York, a Republican-leaning pocket in a Democratic-leaning state.
Cholesterol-screening access and voter turnout
Places with high cholesterol-screening access tend to turn out at a higher rate; Yaphank, NY sits in the top tenth nationally on this measure. Cholesterol screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in Yaphank looks the way it does
Turnout in Yaphank sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Middle Island, NY R+3
- Medford, NY R+10
- Shirley, NY R+19
- North Bellport, NY D+17
- Brookhaven, NY R+6
- Mastic, NY R+15
- Ridge, NY R+19
- Coram, NY Even
- Moriches, NY R+10
- East Patchogue, NY R+13
Cities with Similar Populations
- Cochranville, PA R+21
- Breese, IL R+53
- Avra Valley, AZ R+28
- Herculaneum, MO R+35
- East Earl, PA R+57
- Goodview, VA R+54
- Freeland, WA D+46
- Rothschild, WI R+6
- Ridgway, PA R+35
- Chocowinity, NC R+35
All Local Stats
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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.