Downtown Indianapolis, Indianapolis, IN Political Map | Democrat & Republican Areas in Downtown Indianapolis

By the BestNeighborhood data science team. Last updated May 2026.

Downtown Indianapolis is a Democratic stronghold. About 77% of voters here vote Democratic and 23% Republican.

 

About 45% of adults in Downtown Indianapolis typically vote, below the U.S. average of about 62%. Among adults in Downtown Indianapolis, ~35% vote Democratic, ~10% Republican, and ~55% don't vote. The map below shows estimated turnout by block group.

How Downtown Indianapolis compares

Among neighborhoods within 5 miles, Downtown Indianapolis leans more Democratic than 4 of 10 neighbors.

Downtown Indianapolis runs about 73 points more Democratic than Indiana as a whole. Indiana leans Republican overall, while Downtown Indianapolis is one of the few Democratic-leaning pockets.

Politics vary noticeably by block within Downtown Indianapolis. The southwest side is the most Democratic-leaning (D+59) and the east side is the least Democratic-leaning (D+48), a spread of about 11 points.

Why Downtown Indianapolis leans the way it does

This analysis examined 14,881 data points per neighborhood to find what predicts political lean and turnout. The items below are a few correlations that stood out for Downtown Indianapolis, not a ranked or complete list of what matters most.

Areas with high college attainment vote Democratic. About 68% of adults in Downtown Indianapolis hold a bachelor's degree, about 40 points above the U.S. average of 28%. A high never-married share predicts Democratic voting, and about 68% of adults in Downtown Indianapolis have never been married, above 97% of neighborhoods. Downtown Indianapolis runs against the grain of Indiana, a Democratic-leaning pocket in a Republican-leaning state.

Paved land cover and Democratic lean

Places with extensive paved surfaces tend to lean Democratic; Downtown Indianapolis, Indianapolis, IN sits in the top tenth 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 Downtown Indianapolis looks the way it does

Renters vote less often than owners. About 84% of households in Downtown Indianapolis rent, about 59 points above the U.S. average of 25%. High-crime urban areas turn out at lower rates, and Downtown Indianapolis sits in the top 15% on a violent-crime measure. Learn more about the findings and methodology on the political spectrum map.

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.