Utica leans Republican by roughly 30 points: about 35% of voters vote Democratic and 65% Republican.
About 78% of adults in Utica typically vote, above the U.S. average of about 62%. Among adults in Utica, ~27% vote Democratic, ~51% Republican, and ~22% don't vote. The map below shows estimated turnout by block group.
How Utica compares
Among cities within 25 miles, Utica leans more Republican than 21 of 72 neighbors.
Utica runs about 40 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while Utica is one of the few Republican-leaning pockets.
Why Utica 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 Utica, not a ranked or complete list of what matters most.
Utica votes against the grain of Illinois. Illinois leans Democratic overall, while Utica runs about 40 points more Republican. A high family-household share predicts Republican voting, and about 76% of households in Utica are family households, above 78% of cities.
Homeownership and voter turnout
Places with homeowner-heavy households tend to turn out at a higher rate; Utica, IL sits in the top quarter nationally on this measure.
Why turnout in Utica looks the way it does
Homeowners vote more often than renters. About 90% of households in Utica own their home, about 11 points above the Illinois average of 80%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- North Utica, IL R+25
- Tomahawk Bluff, IL R+28
- Lasalle, IL R+9
- Naplate, IL R+26
- Prairie Center, IL R+36
- Oglesby, IL R+17
- Troy Grove, IL R+33
- Peru, IL R+10
- Triumph, IL R+40
- Ottawa, IL R+11
Cities with Similar Populations
- Nicksville, AZ R+36
- Volga, KY R+67
- Pine Crest, CO R+23
- Milton, IA R+58
- Otterville, IA R+41
- Vera, VA R+48
- Beatty, NV R+42
- Locust, TX R+62
- Gloucester, NC R+49
- Indian Valley, VA R+59
Sources and methodology
Precinct-level voting records used to fit the model come from Illinois State Board of 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.