46121 is a Republican stronghold. About 22% of voters here vote Democratic and 78% Republican.
About 81% of adults in 46121 typically vote, above the U.S. average of about 62%. Among adults in 46121, ~18% vote Democratic, ~63% Republican, and ~19% don't vote. The map below shows estimated turnout by block group.
How 46121 compares
Among zip codes within 15 miles, 46121 leans more Republican than 3 of 14 neighbors.
46121 runs about 37 points more Republican than Indiana as a whole.
Why 46121 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 46121, not a ranked or complete list of what matters most.
Areas with many family households vote Republican. About 74% of households in 46121 are family households, about 8 points above the U.S. average of 67%.
Walkability and Republican lean
Places with a low walkability score tend to lean Republican; 46121, IN 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 46121 looks the way it does
Homeowners vote more often than renters. About 95% of households in 46121 own their home, about 14 points above the Indiana average of 82%. 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.