Junction is a Republican stronghold. About 18% of voters here vote Democratic and 82% Republican.
About 72% of adults in Junction typically vote, above the U.S. average of about 62%. Among adults in Junction, ~13% vote Democratic, ~59% Republican, and ~28% don't vote. The map below shows estimated turnout by block group.
How Junction compares
Among cities within 25 miles, Junction leans more Republican than 50 of 68 neighbors.
Junction runs about 75 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while Junction is one of the few Republican-leaning pockets.
Politics vary noticeably by neighborhood within Junction. The east side is the most Republican-leaning (R+66) and the north side is the least Republican-leaning (R+56), a spread of about 10 points.
Why Junction 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 Junction, not a ranked or complete list of what matters most.
Areas with low college attainment vote Republican. About 10% of adults in Junction hold a bachelor's degree, about 17 points below the Illinois average of 27%. Car-dependent areas vote Republican, and about 89% of residents in Junction drive to work alone, above 92% of cities. Junction runs against the grain of Illinois, a Republican-leaning pocket in a Democratic-leaning state.
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 Junction, IL does.
Why turnout in Junction looks the way it does
Turnout in Junction 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
- Shawneetown, IL R+62
- Equality, IL R+64
- Ridgway, IL R+54
- Old Shawneetown, IL R+63
- Horseshoe, IL R+61
- Sparks Hill, IL R+61
- Somerset, IL R+61
- Henshaw, KY R+64
- Texas City, IL R+60
- Eldorado, IL R+49
Cities with Similar Populations
- Bartlett, KS R+72
- Harris, TN R+65
- Derby, IA R+52
- Melbeta, NE R+73
- Sumner, OK R+63
- Highland Lake, AL R+85
- Mattoon, KY R+72
- Cove Orchard, OR R+20
- Blue Springs, NE R+59
- St. James, IL R+69
All Local Stats
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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.