47304 is a true toss-up. About 51% of voters here vote Democratic and 49% Republican.
About 66% of adults in 47304 typically vote, near the U.S. average of about 62%. Among adults in 47304, ~34% vote Democratic, ~32% Republican, and ~34% don't vote. The map below shows estimated turnout by block group.
How 47304 compares
Among zip codes within 15 miles, 47304 sits roughly in the middle of the political spectrum, with 18 neighbors leaning further in the place's direction and 2 leaning the other way.
47304 runs about 22 points more Democratic than Indiana as a whole. Indiana leans Republican overall, while 47304 sits closer to the political middle.
Politics vary noticeably by block within 47304. The east side runs the most Democratic (D+21) and the northwest side runs the most Republican (R+33), a spread of about 54 points.
Why 47304 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 47304, not a ranked or complete list of what matters most.
47304 votes against the grain of Indiana. Indiana leans Republican overall, while 47304 runs about 22 points more Democratic.
Paved land cover and Democratic lean
Places with extensive paved surfaces tend to lean Democratic; 47304, IN sits in the top quarter nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in 47304 looks the way it does
Turnout in 47304 sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. 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.