Isonville is a Republican stronghold. About 17% of voters here vote Democratic and 83% Republican.
About 80% of adults in Isonville typically vote, above the U.S. average of about 62%. Among adults in Isonville, ~14% vote Democratic, ~66% Republican, and ~20% don't vote. The map below shows estimated turnout by block group.
How Isonville compares
Among cities within 25 miles, Isonville leans more Republican than 51 of 102 neighbors.
Isonville runs about 35 points more Republican than Kentucky as a whole.
Why Isonville 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 Isonville, not a ranked or complete list of what matters most.
Areas with a high white share and below-average college attainment vote Republican. In Isonville, about 98% of residents are non-Hispanic white, about 26 points above the U.S. average of 72%; about 7% of adults hold a bachelor's degree, about 12 points below the Kentucky average of 19%. A high family-household share predicts Republican voting, and about 77% of households in Isonville are family households, above 83% of cities.
Population density and Republican lean
Places with low population density tend to lean Republican; Isonville, KY sits below the national average on this measure.
Why turnout in Isonville looks the way it does
Homeowners vote more often than renters. About 90% of households in Isonville own their home, about 12 points above the Kentucky average of 78%. Limited routine healthcare access lines up with lower turnout, and Isonville sits in the bottom quarter on routine-care measures. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Little Sandy, KY R+60
- Sandy Hook, KY R+49
- Newfoundland, KY R+63
- Green, KY R+59
- Culver, KY R+65
- Faye, KY R+64
- Roscoe, KY R+64
Cities with Similar Populations
- Shiloh, TX R+56
- Flynn, TX R+74
- Cochiti Pueblo, NM D+38
- Oakfield, OH R+55
- Camp Creek, WV R+71
- Ames, NE R+50
- Lodiburg, KY R+65
- Schell City, MO R+73
- Milwaukee, PA R+23
- Walnut, KS R+63
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.