47405 is a Democratic stronghold. About 83% of voters here vote Democratic and 17% Republican.
About 21% of adults in 47405 typically vote, below the U.S. average of about 62%. Among adults in 47405, ~17% vote Democratic, ~4% Republican, and ~79% don't vote. The map below shows estimated turnout by block group.
How 47405 compares
Among zip codes within 15 miles, 47405 is the most Democratic-leaning.
47405 runs about 84 points more Democratic than Indiana as a whole. Indiana leans Republican overall, while 47405 is one of the few Democratic-leaning pockets.
Politics vary noticeably by block within 47405. The southwest side is the most Democratic-leaning (D+81) and the southeast side is the least Democratic-leaning (D+64), a spread of about 17 points.
Why 47405 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 47405, not a ranked or complete list of what matters most.
Areas with high college attainment vote Democratic. About 99% of adults in 47405 hold a bachelor's degree, about 70 points above the U.S. average of 28%. Dense areas vote Democratic, and 47405 sits in the top fifth on density (more than 99%, in the top fraction of zip codes). 47405 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; 47405, 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 47405 looks the way it does
Renters vote less often than owners. More than 99% of households in 47405 rent, about 74 points above the U.S. average of 25%. Limited routine healthcare access lines up with lower turnout, and 47405 sits in the bottom quarter on routine-care measures. High food insecurity lines up with lower turnout, and about 38% of adults in 47405 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.