Vandalia leans heavily Republican by roughly 32 points: about 34% of voters vote Democratic and 66% Republican.
About 76% of adults in Vandalia typically vote, above the U.S. average of about 62%. Among adults in Vandalia, ~26% vote Democratic, ~50% Republican, and ~24% don't vote. The map below shows estimated turnout by block group.
How Vandalia compares
Among cities within 25 miles, Vandalia leans more Republican than 9 of 99 neighbors.
Vandalia runs about 45 points more Republican than New York as a whole. New York leans Democratic overall, while Vandalia is one of the few Republican-leaning pockets.
Politics vary noticeably by neighborhood within Vandalia. The southeast side is the most Republican-leaning (R+38) and the east side is the least Republican-leaning (R+27), a spread of about 12 points.
Why Vandalia 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 Vandalia, not a ranked or complete list of what matters most.
Vandalia votes against the grain of New York. New York leans Democratic overall, while Vandalia runs about 45 points more Republican. Rural areas vote Republican, and Vandalia sits in the bottom quarter on density (about 5%, below 76% of cities).
Cancer-screening access and voter turnout
Places with high colon-cancer-screening access tend to turn out at a higher rate; Vandalia, 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 Vandalia looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Vandalia 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 63%, above 57% of cities. Homeowners vote more often than renters, and about 93% of households in Vandalia own their home, about 18 points above the U.S. average of 75%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Allegany, NY R+23
- Chipmunk, NY R+39
- St. Bonaventure, NY R+9
- Homer Hill, NY R+37
- Kill Buck, NY R+26
- Humphrey, NY R+33
- Limestone, NY R+41
- Knapp Creek, NY R+38
- Olean, NY R+9
- Great Valley, NY R+41
Cities with Similar Populations
- Lindon, CO R+80
- Dublin, AR R+65
- Bremer, IA R+42
- Oliver, IN R+52
- Toga, VA R+34
- Sixmile, IA R+45
- Mount Sterling, IA R+55
- Carroll, PA R+69
- Slickford, KY R+76
- Eden, WY R+73
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.