Modoc is a Republican stronghold. About 21% of voters here vote Democratic and 79% Republican.
About 75% of adults in Modoc typically vote, above the U.S. average of about 62%. Among adults in Modoc, ~16% vote Democratic, ~60% Republican, and ~24% don't vote. The map below shows estimated turnout by block group.
How Modoc compares
Among cities within 25 miles, Modoc leans more Republican than 42 of 69 neighbors.
Modoc runs about 69 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while Modoc is one of the few Republican-leaning pockets.
Why Modoc 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 Modoc, not a ranked or complete list of what matters most.
Modoc votes against the grain of Illinois. Illinois leans Democratic overall, while Modoc runs about 69 points more Republican. A high white share with below-average college attainment predicts Republican voting, and Modoc fits that profile on both counts.
Never-married share, developed land, and voter turnout
Places that combine a low never-married share and a rural land-use pattern tend to turn out at a higher rate, as Modoc, IL does.
Why turnout in Modoc looks the way it does
Turnout in Modoc sits close to the national pattern. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Evansville, IL R+51
- Prairie Du Rocher, IL R+57
- Ruma, IL R+57
- Ellis Grove, IL R+61
- Reily Lake, IL R+49
- Menard, IL R+61
- Ste. Genevieve, MO R+49
- Prairie, IL R+55
- Preston, IL R+60
- Zell, MO R+57
Cities with Similar Populations
- Tendoy, ID R+69
- Kirby, WY R+73
- Kummer, WA D+8
- Junedale, PA R+53
- Wanamie, PA R+30
- Wesley, TX R+68
- Leasuresville, PA R+48
- Walnut Valley, NJ R+32
- Jacksonville, IA R+50
- Bustleton, NJ R+22
All Local Stats
Home Services
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.