Cottage Grove is a Republican stronghold. About 18% of voters here vote Democratic and 82% Republican.
About 64% of adults in Cottage Grove typically vote, near the U.S. average of about 62%. Among adults in Cottage Grove, ~11% vote Democratic, ~53% Republican, and ~36% don't vote. The map below shows estimated turnout by block group.
How Cottage Grove compares
Among cities within 25 miles, Cottage Grove leans more Republican than 55 of 82 neighbors.
Cottage Grove runs about 44 points more Republican than Indiana as a whole.
Why Cottage 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 Cottage Grove, not a ranked or complete list of what matters most.
Areas with a high white share and below-average college attainment vote Republican. In Cottage Grove, about 98% of residents are non-Hispanic white, about 25 points above the U.S. average of 72%; about 18% of adults hold a bachelor's degree, about 10 points below the U.S. average of 28%. Car-dependent areas vote Republican, and about 88% of residents in Cottage Grove drive to work alone, above 90% of cities. A high family-household share predicts Republican voting, and about 75% of households in Cottage Grove are family households, above 75% of cities.
Cancer-screening access and voter turnout
Places with high colon-cancer-screening access tend to turn out at a higher rate; Cottage Grove, 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 Cottage Grove looks the way it does
Areas with high high-school completion turn out at higher rates. About 96% of adults in Cottage Grove have completed high school, about 5 points above the Indiana average of 90%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Lotus, IN R+64
- College Corner, OH R+45
- West College Corner, IN R+59
- Fairhaven, OH R+61
- Liberty, IN R+56
- Roseburg, IN R+61
- Morning Sun, OH R+52
- Old Bath, IN R+65
- Dunlapsville, IN R+60
- Bath, IN R+66
Cities with Similar Populations
- Madrid, KY R+64
- West Hartford, VT D+32
- Weed Crossroad, AL R+70
- Martinsville, KY R+67
- Maybell, CO R+70
- Cauthornville, VA R+8
- Crandall, SD R+53
- Maxville, MT R+32
- Lobelia, WV R+49
- Nemours, WV R+66
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.