South Louisville, Louisville, KY Political Map | Democrat & Republican Areas in South Louisville

By the BestNeighborhood data science team. Last updated May 2026.

South Louisville leans heavily Democratic by roughly 40 points: about 70% of voters vote Democratic and 30% Republican.

 

About 42% of adults in South Louisville typically vote, below the U.S. average of about 62%. Among adults in South Louisville, ~29% vote Democratic, ~13% Republican, and ~58% don't vote. The map below shows estimated turnout by block group.

How South Louisville compares

Among neighborhoods within 5 miles, South Louisville leans more Democratic than 8 of 29 neighbors.

South Louisville runs about 71 points more Democratic than Kentucky as a whole. Kentucky leans Republican overall, while South Louisville is one of the few Democratic-leaning pockets.

Politics vary noticeably by block within South Louisville. The northeast side is the most Democratic-leaning (D+51) and the southwest side is the least Democratic-leaning (D+19), a spread of about 32 points.

Why South Louisville leans the way it does

This analysis examined 14,881 data points per neighborhood to find what predicts political lean and turnout. The items below are a few correlations that stood out for South Louisville, not a ranked or complete list of what matters most.

Dense areas vote Democratic. More than 99% of residents in South Louisville live in densely developed areas, about 64 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 55% of adults in South Louisville have never been married, above 88% of neighborhoods. South Louisville runs against the grain of Kentucky, a Democratic-leaning pocket in a Republican-leaning state.

Paved land cover and Democratic lean

Places with extensive paved surfaces tend to lean Democratic; South Louisville, Louisville, KY sits in the top tenth nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.

Why turnout in South Louisville looks the way it does

Areas with limited routine healthcare access turn out at lower rates. South Louisville is in the bottom quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 42%, about 12 points below the Kentucky average of 54%. Renters vote less often than owners, and about 70% of households in South Louisville rent, about 45 points above the U.S. average of 25%. High-crime urban areas turn out at lower rates, and South Louisville sits in the top 15% on a violent-crime measure. Learn more about the findings and methodology on the political spectrum map.

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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.