Jeff is a Republican stronghold. About 17% of voters here vote Democratic and 83% Republican.
About 69% of adults in Jeff typically vote, above the U.S. average of about 62%. Among adults in Jeff, ~12% vote Democratic, ~57% Republican, and ~31% don't vote. The map below shows estimated turnout by block group.
How Jeff compares
Among cities within 25 miles, Jeff leans more Republican than 35 of 123 neighbors.
Jeff runs about 35 points more Republican than Kentucky as a whole.
Why Jeff 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 Jeff, not a ranked or complete list of what matters most.
Areas with a high white share and below-average college attainment vote Republican. In Jeff, about 96% of residents are non-Hispanic white, about 24 points above the U.S. average of 72%; about 9% of adults hold a bachelor's degree, about 10 points below the Kentucky average of 19%. A high family-household share predicts Republican voting, and about 78% of households in Jeff are family households, above 86% of cities.
Preventive-care access and voter turnout
Places with limited routine preventive-care access tend to turn out at a lower rate; Jeff, KY sits in the bottom quarter nationally on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.
Why turnout in Jeff looks the way it does
Limited routine healthcare access lines up with lower turnout, and Jeff sits in the bottom quarter on routine-care measures. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Fourseam, KY R+64
- Happy, KY R+64
- Viper, KY R+67
- Hazard, KY R+54
- Combs, KY R+55
- Sassafras, KY R+61
- Frew, KY R+70
- Vicco, KY R+64
- Avawam, KY R+64
- Dwarf, KY R+63
Cities with Similar Populations
- St. Albans Bay, VT R+27
- Fairfield, ID R+72
- Meadow Lakes, CA R+42
- Farnham, NY R+31
- Kingswood, KY R+63
- Mapleton Depot, PA R+70
- Lesterville, SD R+56
- Expose, MS R+60
- Kirkland, NY Even
- River, KY R+73
All Local Stats
Home Services
Sources and methodology
Precinct-level voting records used to fit the model come from Kentucky 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.