Grissom Arb is a Republican stronghold. About 22% of voters here vote Democratic and 78% Republican.
About 71% of adults in Grissom Arb typically vote, above the U.S. average of about 62%. Among adults in Grissom Arb, ~16% vote Democratic, ~55% Republican, and ~29% don't vote. The map below shows estimated turnout by block group.
How Grissom Arb compares
Among cities within 25 miles, Grissom Arb leans more Republican than 26 of 76 neighbors.
Grissom Arb runs about 36 points more Republican than Indiana as a whole.
Politics vary noticeably by neighborhood within Grissom Arb. The south side is the most Republican-leaning (R+66) and the southwest side is the least Republican-leaning (R+22), a spread of about 44 points.
Why Grissom Arb 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 Grissom Arb, not a ranked or complete list of what matters most.
Areas with low college attainment vote Republican. About 13% of adults in Grissom Arb hold a bachelor's degree, about 9 points below the Indiana average of 22%. Car-dependent areas vote Republican, and about 86% of residents in Grissom Arb drive to work alone, above 84% of cities.
Cancer-screening access and voter turnout
Places with high colon-cancer-screening access tend to turn out at a higher rate; Grissom Arb, IN sits in the top quarter nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in Grissom Arb looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Grissom Arb 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 64%, above 64% of cities. Homeowners vote more often than renters, and about 93% of households in Grissom Arb own their home, about 18 points above the U.S. average of 75%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Ridgeview, IN R+45
- Park View Heights, IN R+60
- Peru, IN R+39
- Peoria, IN R+65
- Richvalley, IN R+60
- Denver, IN R+63
- Mexico, IN R+54
- New Santa Fe, IN R+64
- Valley Brook, IN R+55
- Nead, IN R+53
Cities with Similar Populations
- Burbank, SD R+38
- Flynn, TX R+74
- Holiday Hills, TN R+61
- Cochiti Pueblo, NM D+38
- Olustee, OK R+76
- Schell City, MO R+73
- Ames, NE R+50
- Shiloh, TX R+56
- Camp Creek, WV R+71
- Minetto, NY Even
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.