Speedway leans Democratic by roughly 24 points: about 62% of voters vote Democratic and 38% Republican.
About 58% of adults in Speedway typically vote, near the U.S. average of about 62%. Among adults in Speedway, ~36% vote Democratic, ~22% Republican, and ~42% don't vote. The map below shows estimated turnout by block group.
How Speedway compares
Among cities within 25 miles, Speedway leans more Democratic than 87 of 90 neighbors.
Speedway runs about 43 points more Democratic than Indiana as a whole. Indiana leans Republican overall, while Speedway is one of the few Democratic-leaning pockets.
Politics vary noticeably by neighborhood within Speedway. The north side runs the most Democratic (D+36) and the east side runs the most Republican (Even), a spread of about 36 points.
Why Speedway 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 Speedway, not a ranked or complete list of what matters most.
Dense areas vote Democratic. About 99% of residents in Speedway live in densely developed areas, about 63 points above the U.S. average of 36%. High college attainment predicts Democratic voting, and Speedway sits in the top quarter (about 32%, above 78% of cities). Speedway 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; Speedway, 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 Speedway looks the way it does
Renters vote less often than owners. About 53% of households in Speedway rent, about 28 points above the U.S. average of 25%. Crowded housing lines up with lower turnout, and about 4% of homes in Speedway have more than one occupant per room, above 82% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Clermont, IN D+6
- Rocky Ripple, IN D+29
- Indianapolis, IN Even
- Avon, IN R+12
- Brownsburg, IN R+14
- Meridian Hills, IN D+21
- Williams Creek, IN D+19
- Plainfield, IN R+19
- Royalton, IN R+35
- Tilden, IN R+49
Cities with Similar Populations
- Bloomfield, NM R+45
- Lantana, FL D+5
- Winchester, TN R+55
- Murrysville, PA R+15
- Key Largo, FL R+25
- Shorewood, WI D+63
- Barboursville, WV R+36
- Lake Tapps, WA R+9
- Monroe, WI R+8
- Columbia, KY R+59
All Local Stats
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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.