40009 is a Republican stronghold. About 17% of voters here vote Democratic and 83% Republican.
About 58% of adults in 40009 typically vote, near the U.S. average of about 62%. Among adults in 40009, ~10% vote Democratic, ~48% Republican, and ~42% don't vote. The map below shows estimated turnout by block group.
How 40009 compares
Among zip codes within 15 miles, 40009 leans more Republican than 5 of 7 neighbors.
40009 runs about 36 points more Republican than Kentucky as a whole.
Why 40009 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 40009, not a ranked or complete list of what matters most.
Areas with a high white share and below-average college attainment vote Republican. In 40009, about 93% of residents are non-Hispanic white, about 21 points above the U.S. average of 72%; about 9% of adults hold a bachelor's degree, about 9 points below the Kentucky average of 19%. Rural areas vote Republican, and 40009 sits in the bottom quarter on density (about 5%, below 83% of zip codes).
Walkability and Republican lean
Places with a low walkability score tend to lean Republican; 40009, KY sits in the bottom 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 40009 looks the way it does
Areas with low high-school completion turn out at lower rates. About 81% of adults in 40009 have completed high school, about 9 points below the U.S. average of 90%. 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.