Brownsburg, IN Political Map | Democrat & Republican Areas in Brownsburg

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

Brownsburg leans slightly Republican by roughly 14 points: about 43% of voters vote Democratic and 57% Republican.

 

About 86% of adults in Brownsburg typically vote, above the U.S. average of about 62%. Among adults in Brownsburg, ~37% vote Democratic, ~49% Republican, and ~14% don't vote. The map below shows estimated turnout by block group.

How Brownsburg compares

Among cities within 25 miles, Brownsburg leans more Republican than 18 of 85 neighbors.

Brownsburg runs about 5 points more Democratic than Indiana as a whole.

Politics vary noticeably by neighborhood within Brownsburg. The northeast side runs the most Democratic (D+6) and the northwest side runs the most Republican (R+31), a spread of about 37 points.

Why Brownsburg leans the way it does

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

Brownsburg votes Republican even though it is densely developed (about 73%, far above the Indiana average of 25%). State and regional patterns outweigh the Democratic lean that density usually predicts here. A high family-household share predicts Republican voting, and about 78% of households in Brownsburg are family households, above 85% of cities.

Preventive-care access and voter turnout

Places with strong routine preventive-care access tend to turn out at a higher rate; Brownsburg, IN sits in the top 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 Brownsburg looks the way it does

Areas with strong routine healthcare access turn out at higher rates. Brownsburg is in the top quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 70%, about 10 points above the U.S. average of 60%. High high-school completion lines up with higher turnout, and about 96% of adults in Brownsburg have completed high school, above 82% of cities. Learn more about the findings and methodology on the political spectrum map.

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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.