40507 is a Democratic stronghold. About 78% of voters here vote Democratic and 22% Republican.
About 50% of adults in 40507 typically vote, below the U.S. average of about 62%. Among adults in 40507, ~39% vote Democratic, ~11% Republican, and ~50% don't vote. The map below shows estimated turnout by block group.
How 40507 compares
Among zip codes within 15 miles, 40507 leans more Democratic than 19 of 20 neighbors.
40507 runs about 86 points more Democratic than Kentucky as a whole. Kentucky leans Republican overall, while 40507 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 40507. The east side is the most Democratic-leaning (D+61) and the northwest side is the least Democratic-leaning (D+43), a spread of about 19 points.
Why 40507 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 40507, not a ranked or complete list of what matters most.
Dense areas vote Democratic. More than 99% of residents in 40507 live in densely developed areas, about 64 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and 40507 sits in the top quarter (about 47%, above 87% of zip codes). 40507 runs against the grain of Kentucky, a Democratic-leaning pocket in a Republican-leaning state.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; 40507, KY sits in the top tenth 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 40507 looks the way it does
Renters vote less often than owners. About 77% of households in 40507 rent, about 52 points above the U.S. average of 25%. High-crime urban areas turn out at lower rates, and 40507 sits in the top 15% on a violent-crime measure. 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.