46218 is a Democratic stronghold. About 85% of voters here vote Democratic and 15% Republican.
About 50% of adults in 46218 typically vote, below the U.S. average of about 62%. Among adults in 46218, ~43% vote Democratic, ~7% Republican, and ~50% don't vote. The map below shows estimated turnout by block group.
How 46218 compares
Among zip codes within 15 miles, 46218 is the most Democratic-leaning.
46218 runs about 89 points more Democratic than Indiana as a whole. Indiana leans Republican overall, while 46218 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 46218. The north side is the most Democratic-leaning (D+86) and the south side is the least Democratic-leaning (D+38), a spread of about 48 points.
Why 46218 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 46218, not a ranked or complete list of what matters most.
Dense areas vote Democratic. More than 99% of residents in 46218 live in densely developed areas, about 63 points above the U.S. average of 36%. A high never-married share predicts Democratic voting, and about 47% of adults in 46218 have never been married, above 93% of zip codes. 46218 runs against the grain of Indiana, a Democratic-leaning pocket in a Republican-leaning state.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; 46218, IN sits in the top 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 46218 looks the way it does
Areas with limited routine healthcare access turn out at lower rates. 46218 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 45%, about 16 points below the Indiana average of 61%. Renters vote less often than owners, and about 47% of households in 46218 rent, about 22 points above the U.S. average of 25%. High food insecurity lines up with lower turnout, and about 39% of adults in 46218 report food insecurity, above 98% 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.