Johnston City leans heavily Republican by roughly 42 points: about 29% of voters vote Democratic and 71% Republican.
About 72% of adults in Johnston City typically vote, above the U.S. average of about 62%. Among adults in Johnston City, ~21% vote Democratic, ~51% Republican, and ~28% don't vote. The map below shows estimated turnout by block group.
How Johnston City compares
Among cities within 25 miles, Johnston City leans more Republican than 13 of 89 neighbors.
Johnston City runs about 53 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while Johnston City is one of the few Republican-leaning pockets.
Why Johnston City 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 Johnston City, not a ranked or complete list of what matters most.
Johnston City votes against the grain of Illinois. Illinois leans Democratic overall, while Johnston City runs about 53 points more Republican. Car-dependent areas vote Republican, and about 85% of residents in Johnston City drive to work alone, above 82% of cities.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; Johnston City, IL sits in the top quarter nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in Johnston City looks the way it does
Turnout in Johnston City 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
- Whiteash, IL R+51
- Shakerag, IL R+62
- Spillertown, IL R+47
- Freeman Spur, IL R+53
- Herrin, IL R+35
- West Frankfort, IL R+50
- Energy, IL R+34
- Plumfield, IL R+64
- Marion, IL R+31
Cities with Similar Populations
- Scottdale, GA D+62
- Stanfield, NC R+69
- Nicholson, GA R+65
- Merlin, OR R+38
- Jamestown, CA R+23
- Pembroke, GA R+44
- Follansbee, WV R+45
- Franklin, NJ R+23
- Le Sueur, MN R+28
- Butler Beach, FL R+27
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.