47145 is a Republican stronghold. About 24% of voters here vote Democratic and 76% Republican.
About 52% of adults in 47145 typically vote, below the U.S. average of about 62%. Among adults in 47145, ~12% vote Democratic, ~40% Republican, and ~48% don't vote. The map below shows estimated turnout by block group.
How 47145 compares
Among zip codes within 15 miles, 47145 leans more Republican than 8 of 14 neighbors.
47145 runs about 33 points more Republican than Indiana as a whole.
Why 47145 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 47145, not a ranked or complete list of what matters most.
Car-dependent areas vote Republican. About 88% of residents in 47145 drive to work alone, about 14 points above the U.S. average of 74%. A high white share with below-average college attainment predicts Republican voting, and 47145 fits that profile on both counts.
Preventive-care access and voter turnout
Places with limited routine preventive-care access tend to turn out at a lower rate; 47145, IN sits in the bottom quarter nationally on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.
Why turnout in 47145 looks the way it does
Areas with low high-school completion turn out at lower rates. About 85% of adults in 47145 have completed high school, about 5 points below the U.S. average of 90%. 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.