46815 leans slightly Republican by roughly 6 points: about 47% of voters vote Democratic and 53% Republican.
About 70% of adults in 46815 typically vote, above the U.S. average of about 62%. Among adults in 46815, ~33% vote Democratic, ~37% Republican, and ~30% don't vote. The map below shows estimated turnout by block group.
How 46815 compares
Among zip codes within 15 miles, 46815 leans more Republican than 8 of 26 neighbors.
46815 runs about 12 points more Democratic than Indiana as a whole.
Politics vary noticeably by block within 46815. The southwest side runs the most Democratic (D+3) and the east side runs the most Republican (R+14), a spread of about 17 points.
Why 46815 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 46815, not a ranked or complete list of what matters most.
46815 votes Republican even though it is densely developed (about 89%, far above the Indiana average of 25%). State and regional patterns outweigh the Democratic lean that density usually predicts here.
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; 46815, IN sits in the top quarter 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 46815 looks the way it does
Turnout in 46815 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.