47102 is a Republican stronghold. About 23% of voters here vote Democratic and 77% Republican.
About 61% of adults in 47102 typically vote, near the U.S. average of about 62%. Among adults in 47102, ~14% vote Democratic, ~47% Republican, and ~39% don't vote. The map below shows estimated turnout by block group.
How 47102 compares
Among zip codes within 15 miles, 47102 leans more Republican than 2 of 8 neighbors.
47102 runs about 35 points more Republican than Indiana as a whole.
Politics vary noticeably by block within 47102. The northwest side is the most Republican-leaning (R+63) and the north side is the least Republican-leaning (R+46), a spread of about 17 points.
Why 47102 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 47102, not a ranked or complete list of what matters most.
Areas with low college attainment vote Republican. About 10% of adults in 47102 hold a bachelor's degree, about 12 points below the Indiana average of 22%.
Walkability and Republican lean
Places with a low walkability score tend to lean Republican; 47102, IN sits below the national average on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in 47102 looks the way it does
Areas with low high-school completion turn out at lower rates. About 86% of adults in 47102 have completed high school, below 76% 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.