40178 is a Republican stronghold. About 18% of voters here vote Democratic and 82% Republican.
About 72% of adults in 40178 typically vote, above the U.S. average of about 62%. Among adults in 40178, ~13% vote Democratic, ~59% Republican, and ~28% don't vote. The map below shows estimated turnout by block group.
How 40178 compares
Among zip codes within 15 miles, 40178 leans more Republican than 6 of 10 neighbors.
40178 runs about 33 points more Republican than Kentucky as a whole.
Why 40178 leans the way it does
Density, race composition, education, and family structure all sit close to their national averages in 40178. The lean here lands roughly where demographic data alone would predict.
Park access and Republican lean
Places with low park coverage tend to lean Republican; 40178, KY sits in the bottom quarter nationally on this measure. Park access does not change how people vote; it tends to track denser, higher-income areas.
Why turnout in 40178 looks the way it does
Homeowners vote more often than renters. About 97% of households in 40178 own their home, about 19 points above the Kentucky average of 78%. Learn more about the findings and methodology on the political spectrum map.
Nearby Zip Codes
Zip Codes with Similar Populations
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.