Gem leans heavily Republican by roughly 36 points: about 32% of voters vote Democratic and 68% Republican.
About 85% of adults in Gem typically vote, above the U.S. average of about 62%. Among adults in Gem, ~27% vote Democratic, ~58% Republican, and ~15% don't vote. The map below shows estimated turnout by block group.
How Gem compares
Among cities within 25 miles, Gem leans more Republican than 25 of 87 neighbors.
Gem runs about 18 points more Republican than Indiana as a whole.
Why Gem 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 Gem, not a ranked or complete list of what matters most.
Gem votes Republican even though it is densely developed (about 25%, about 12 points below the U.S. average of 36%). State and regional patterns outweigh the Democratic lean that density usually predicts here.
Food insecurity and voter turnout
Places with low food insecurity tend to turn out at a higher rate; Gem, IN sits in the bottom tenth nationally on this measure. Food insecurity does not directly drive turnout; it reflects economic hardship, which lines up with lower voting.
Why turnout in Gem looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Gem 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 97% of adults in Gem have completed high school, above 87% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Cumberland, IN R+6
- Mount Comfort, IN R+29
- Spring Lake, IN R+41
- New Palestine, IN R+41
- Philadelphia, IN R+44
- Mohawk, IN R+46
- Lawrence, IN D+30
- Warren Park, IN D+36
- Greenfield, IN R+38
- Pleasant View, IN R+52
Cities with Similar Populations
- Brownwood, GA R+45
- Springdale, TN R+70
- Howley, TN R+66
- Kolin, LA R+85
- Flora, LA R+79
- Linneus, ME R+44
- Robertsville, OH R+51
- Burlington, TX R+70
- Harford, NY R+34
- Newington, NH D+21
All Local Stats
Home Services
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.