40223 leans slightly Democratic by roughly 8 points: about 54% of voters vote Democratic and 46% Republican.
About 78% of adults in 40223 typically vote, above the U.S. average of about 62%. Among adults in 40223, ~42% vote Democratic, ~36% Republican, and ~22% don't vote. The map below shows estimated turnout by block group.
How 40223 compares
Among zip codes within 15 miles, 40223 leans more Democratic than 22 of 44 neighbors.
40223 runs about 38 points more Democratic than Kentucky as a whole. Kentucky leans Republican overall, while 40223 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 40223. The southeast side runs the most Democratic (D+13) and the northeast side runs the most Republican (R+3), a spread of about 16 points.
Why 40223 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 40223, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 56% of adults in 40223 hold a bachelor's degree, about 28 points above the U.S. average of 28%. Dense areas vote Democratic, and 40223 sits in the top fifth on density (about 93%, above 90% of zip codes). 40223 runs against the grain of Kentucky, a Democratic-leaning pocket in a Republican-leaning state.
Population density and Democratic lean
Places with high population density tend to lean Democratic; 40223, KY sits in the top quarter nationally on this measure.
Why turnout in 40223 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 40223 is in the top quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 70%, about 10 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 98% of adults in 40223 have completed high school, above 92% of zip codes. 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.