40312 is a Republican stronghold. About 19% of voters here vote Democratic and 81% Republican.
About 71% of adults in 40312 typically vote, above the U.S. average of about 62%. Among adults in 40312, ~13% vote Democratic, ~58% Republican, and ~29% don't vote. The map below shows estimated turnout by block group.
How 40312 compares
Among zip codes within 15 miles, 40312 leans more Republican than 3 of 9 neighbors.
40312 runs about 31 points more Republican than Kentucky as a whole.
Politics vary noticeably by block within 40312. The southwest side is the most Republican-leaning (R+68) and the east side is the least Republican-leaning (R+56), a spread of about 12 points.
Why 40312 leans the way it does
This analysis examined 14,881 data points per zip code to find what predicts political lean and turnout. The items below are a few correlations that stood out for 40312, not a ranked or complete list of what matters most.
Car-dependent areas vote Republican. About 89% of residents in 40312 drive to work alone, about 16 points above the U.S. average of 74%. A high white share with below-average college attainment predicts Republican voting, and 40312 fits that profile on both counts.
Walkability and Republican lean
Places with a low walkability score tend to lean Republican; 40312, KY sits in the bottom quarter nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in 40312 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 40312 is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. 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.