47858 is a Republican stronghold. About 21% of voters here vote Democratic and 79% Republican.
About 74% of adults in 47858 typically vote, above the U.S. average of about 62%. Among adults in 47858, ~15% vote Democratic, ~59% Republican, and ~26% don't vote. The map below shows estimated turnout by block group.
How 47858 compares
Among zip codes within 15 miles, 47858 leans more Republican than 7 of 15 neighbors.
47858 runs about 39 points more Republican than Indiana as a whole.
Politics vary noticeably by block within 47858. The southwest side is the most Republican-leaning (R+63) and the north side is the least Republican-leaning (R+50), a spread of about 13 points.
Why 47858 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 47858, not a ranked or complete list of what matters most.
Car-dependent areas vote Republican. About 92% of residents in 47858 drive to work alone, about 18 points above the U.S. average of 74%. A high white share with below-average college attainment predicts Republican voting, and 47858 fits that profile on both counts.
Population density and Republican lean
Places with low population density tend to lean Republican; 47858, IN sits below the national average on this measure.
Why turnout in 47858 looks the way it does
Homeowners vote more often than renters. About 88% of households in 47858 own their home, about 7 points above the Indiana average of 82%. 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.