Dexter is a Republican stronghold. About 17% of voters here vote Democratic and 83% Republican.
About 82% of adults in Dexter typically vote, above the U.S. average of about 62%. Among adults in Dexter, ~14% vote Democratic, ~68% Republican, and ~18% don't vote. The map below shows estimated turnout by block group.
How Dexter compares
Among cities within 25 miles, Dexter leans more Republican than 22 of 55 neighbors.
Dexter runs about 77 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while Dexter is one of the few Republican-leaning pockets.
Why Dexter 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 Dexter, not a ranked or complete list of what matters most.
Dexter votes against the grain of Illinois. Illinois leans Democratic overall, while Dexter runs about 77 points more Republican.
Food insecurity and voter turnout
Places with low food insecurity tend to turn out at a higher rate; Dexter, IL sits in the bottom quarter nationally on this measure. Food insecurity does not directly drive turnout; it reflects economic hardship, which lines up with lower voting.
Why turnout in Dexter looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Dexter 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 68%, about 8 points above the U.S. average of 60%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Altamont, IL R+60
- Keptown, IL R+64
- Moccasin, IL R+67
- Funkhouser, IL R+59
- Shumway, IL R+64
- Lillyville, IL R+56
- Beecher City, IL R+65
- Effingham, IL R+47
- Holland, IL R+67
- Pruett, IL R+68
Cities with Similar Populations
- Peth, NY R+33
- Mist, OR R+36
- Molen, UT R+77
- West Georgetown, ME D+22
- Fullerton, AL R+80
- Lower Granville, VT D+19
- Gin City, AR R+41
- Glen Lyn, VA R+67
- Milo, WV R+63
- Colchester, NY R+19
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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.