46590 leans heavily Republican by roughly 32 points: about 34% of voters vote Democratic and 66% Republican.
About 72% of adults in 46590 typically vote, above the U.S. average of about 62%. Among adults in 46590, ~25% vote Democratic, ~47% Republican, and ~28% don't vote. The map below shows estimated turnout by block group.
How 46590 compares
Among zip codes within 15 miles, 46590 is the least Republican-leaning.
46590 runs about 13 points more Republican than Indiana as a whole.
Politics vary noticeably by block within 46590. The southwest side is the most Republican-leaning (R+39) and the northeast side is the least Republican-leaning (R+21), a spread of about 18 points.
Why 46590 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 46590, not a ranked or complete list of what matters most.
46590 votes Republican even though it is densely developed (about 71%, far above the Indiana average of 25%). State and regional patterns outweigh the Democratic lean that density usually predicts here.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; 46590, IN sits in the top quarter 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 46590 looks the way it does
Areas with strong routine healthcare access turn out at higher rates. 46590 is in the top quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 69%, about 9 points above the U.S. average of 60%. 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.