Glenarm leans heavily Republican by roughly 36 points: about 32% of voters vote Democratic and 68% Republican.
About 94% of adults in Glenarm typically vote, above the U.S. average of about 62%. Among adults in Glenarm, ~30% vote Democratic, ~64% Republican, and ~6% don't vote. The map below shows estimated turnout by block group.
How Glenarm compares
Among cities within 25 miles, Glenarm leans more Republican than 17 of 70 neighbors.
Glenarm runs about 47 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while Glenarm is one of the few Republican-leaning pockets.
Politics vary noticeably by neighborhood within Glenarm. The south side is the most Republican-leaning (R+47) and the northwest side is the least Republican-leaning (R+31), a spread of about 16 points.
Why Glenarm 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 Glenarm, not a ranked or complete list of what matters most.
Car-dependent areas vote Republican. About 88% of residents in Glenarm drive to work alone, about 15 points above the U.S. average of 74%. A high family-household share predicts Republican voting, and about 86% of households in Glenarm are family households, above 97% of cities. Glenarm runs against the grain of Illinois, a Republican-leaning pocket in a Democratic-leaning state.
Preventive-care access and voter turnout
Places with strong routine preventive-care access tend to turn out at a higher rate; Glenarm, IL sits in the top tenth nationally on this measure. Dental visits do not drive turnout; the rate reflects income, insurance, and healthcare access, which line up with who votes.
Why turnout in Glenarm looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Glenarm is in the top quarter nationally for routine-care measures such as insurance coverage, preventive screenings, and dental visits. The dental-visit rate here is about 70%, about 10 points above the U.S. average of 60%. Homeowners vote more often than renters, and about 95% of households in Glenarm own their home, about 20 points above the U.S. average of 75%. High high-school completion lines up with higher turnout, and about 97% of adults in Glenarm have completed high school, above 92% of cities. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Chatham, IL R+9
- Divernon, IL R+49
- Pawnee, IL R+39
- Auburn, IL R+29
- New City, IL R+40
- Southern View, IL R+6
- Thayer, IL R+45
- Sicily, IL R+57
- Jerome, IL D+16
- Curran, IL R+28
Cities with Similar Populations
- Easton, KS R+52
- Vida, OR R+6
- Deerfield, KS R+82
- Dorsey, IL R+39
- Amherstdale, WV R+71
- Moriah, NY R+24
- Springfield, WV R+66
- Green Pond, AL R+74
- Side Lake, MN R+18
- Moses Lake North, WA R+67
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.