River Ridge leans heavily Republican by roughly 48 points: about 26% of voters vote Democratic and 74% Republican.
About 67% of adults in River Ridge typically vote, near the U.S. average of about 62%. Among adults in River Ridge, ~17% vote Democratic, ~50% Republican, and ~33% don't vote. The map below shows estimated turnout by block group.
How River Ridge compares
Among cities within 25 miles, River Ridge leans more Republican than 75 of 115 neighbors.
River Ridge runs about 29 points more Republican than Indiana as a whole.
Why River Ridge 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 River Ridge, not a ranked or complete list of what matters most.
River Ridge votes Republican even though it is densely developed (about 20%, modestly below the Indiana average of 25%). State and regional patterns outweigh the Democratic lean that density usually predicts here. Low college attainment predicts Republican voting, and River Ridge sits in the bottom quarter (about 11%, below 90% of cities). A high family-household share predicts Republican voting, and about 82% of households in River Ridge are family households, above 92% of cities.
Local retail density and voter turnout
Places with dense local retail within a mile tend to turn out at a higher rate; River Ridge, IN sits in the top tenth nationally on this measure. Nearby retail does not change how people vote; it reflects how urban and built-up a place is.
Why turnout in River Ridge looks the way it does
Turnout in River Ridge 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
- Charlestown, IN R+44
- Rolling Hills, IN R+53
- Goshen, KY R+17
- Otisco, IN R+54
- Speed, IN R+41
- Marysville, IN R+58
- Memphis, IN R+48
- Sellersburg, IN R+30
- Prospect, KY R+7
- Utica, IN R+29
Cities with Similar Populations
- Wing, AR R+69
- Jericho, TX R+87
- Spanish Ranch, CA R+29
- Sorum, SD R+83
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.