Iona is a Republican stronghold. About 19% of voters here vote Democratic and 81% Republican.
About 62% of adults in Iona typically vote, near the U.S. average of about 62%. Among adults in Iona, ~12% vote Democratic, ~51% Republican, and ~37% don't vote. The map below shows estimated turnout by block group.
How Iona compares
Among cities within 25 miles, Iona leans more Republican than 50 of 72 neighbors.
Iona runs about 43 points more Republican than Indiana as a whole.
Why Iona 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 Iona, not a ranked or complete list of what matters most.
Car-dependent areas vote Republican. About 95% of residents in Iona drive to work alone, about 22 points above the U.S. average of 74%. A high family-household share predicts Republican voting, and about 77% of households in Iona are family households, above 82% of cities.
High-school completion and voter turnout
Places with high-school-completion-heavy adults tend to turn out at a higher rate; Iona, IN sits in the top quarter nationally on this measure.
Why turnout in Iona looks the way it does
Areas with high high-school completion turn out at higher rates. About 97% of adults in Iona have completed high school, about 7 points above the Indiana average of 90%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Decker, IN R+62
- Verne, IN R+57
- Hazleton, IN R+59
- Monroe City, IN R+59
- Vincennes, IN R+32
- Fritchton, IN R+61
- Bowman, IN R+61
- Union, IN R+60
- Mount Olympus, IN R+59
- St. Francisville, IL R+62
Cities with Similar Populations
- Abbyville, KS R+61
- Long Creek, SC R+55
- Maxville, OH R+65
- Esto, KY R+65
- Radley, IN R+60
- Cordova, NE R+64
- Morgan, VT R+30
- Jameson, MO R+67
- Moorpark Home Acres, CA R+13
- Institute, WV D+47
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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.