Spring Grove leans Republican by roughly 22 points: about 39% of voters vote Democratic and 61% Republican.
About 72% of adults in Spring Grove typically vote, above the U.S. average of about 62%. Among adults in Spring Grove, ~28% vote Democratic, ~44% Republican, and ~28% don't vote. The map below shows estimated turnout by block group.
How Spring Grove compares
Among cities within 25 miles, Spring Grove leans more Republican than 1 of 93 neighbors.
Politically, Spring Grove sits close to the rest of Indiana.
Politics vary noticeably by neighborhood within Spring Grove. The northwest side is the most Republican-leaning (R+42) and the south side is the least Republican-leaning (R+17), a spread of about 25 points.
Why Spring Grove 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 Spring Grove, not a ranked or complete list of what matters most.
Spring Grove votes Republican even though it is densely developed (about 58%, far above the Indiana average of 25%). Here an older population outweighs the Democratic lean that density usually predicts.
Population density and Democratic lean
Places with high population density tend to lean Democratic; Spring Grove, IN sits in the top quarter nationally on this measure.
Why turnout in Spring Grove looks the way it does
Turnout in Spring Grove sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Richmond, IN R+20
- Webster, IN R+55
- New Westville, OH R+61
- New Paris, OH R+59
- Centerville, IN R+51
- Whitewater, IN R+58
- Boston, IN R+54
- Fountain City, IN R+53
- Greens Fork, IN R+60
- Williamsburg, IN R+60
Cities with Similar Populations
- Wadhams, NY Even
- Alhambra, VA R+46
- Waiteville, WV R+61
- Wakelee, MI R+41
- North Edinburg, PA R+35
- Swanburg, MN R+31
- Riverton, OR R+30
- Laneville, WV R+56
- Emmett, KS R+64
- Egypt, AL R+81
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.