46231 leans Democratic by roughly 20 points: about 60% of voters vote Democratic and 40% Republican.
About 62% of adults in 46231 typically vote, near the U.S. average of about 62%. Among adults in 46231, ~37% vote Democratic, ~25% Republican, and ~38% don't vote. The map below shows estimated turnout by block group.
How 46231 compares
Among zip codes within 15 miles, 46231 leans more Democratic than 20 of 37 neighbors.
46231 runs about 38 points more Democratic than Indiana as a whole. Indiana leans Republican overall, while 46231 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 46231. The east side runs the most Democratic (D+27) and the southwest side runs the most Republican (R+22), a spread of about 49 points.
Why 46231 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 46231, not a ranked or complete list of what matters most.
Density combined with diversity predicts Democratic voting. Non-Hispanic white share in 46231 is about 43%, about 29 points below the U.S. average of 72%. 46231 runs against the grain of Indiana, a Democratic-leaning pocket in a Republican-leaning state.
Population density and Democratic lean
Places with high population density tend to lean Democratic; 46231, IN sits in the top quarter nationally on this measure.
Why turnout in 46231 looks the way it does
Turnout in 46231 sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. 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 Indiana Secretary of State, 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.