46408 leans heavily Democratic by roughly 44 points: about 72% of voters vote Democratic and 28% Republican.
About 55% of adults in 46408 typically vote, below the U.S. average of about 62%. Among adults in 46408, ~40% vote Democratic, ~15% Republican, and ~45% don't vote. The map below shows estimated turnout by block group.
How 46408 compares
Among zip codes within 15 miles, 46408 leans more Democratic than 20 of 35 neighbors.
46408 runs about 64 points more Democratic than Indiana as a whole. Indiana leans Republican overall, while 46408 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 46408. The north side runs the most Democratic (D+85) and the northwest side runs the most Republican (R+8), a spread of about 94 points.
Why 46408 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 46408, not a ranked or complete list of what matters most.
Density combined with diversity predicts Democratic voting. Non-Hispanic white share in 46408 is about 30%, about 43 points below the U.S. average of 72%. A high never-married share predicts Democratic voting, and about 44% of adults in 46408 have never been married, above 91% of zip codes. 46408 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; 46408, IN sits in the top quarter nationally on this measure.
Why turnout in 46408 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 46408 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 44%, about 17 points below the Indiana average of 61%. Renters vote less often than owners, and about 40% of households in 46408 rent, about 15 points above the U.S. average of 25%. High food insecurity lines up with lower turnout, and about 37% of adults in 46408 report food insecurity, above 97% 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 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.