Sunfield leans heavily Republican by roughly 50 points: about 25% of voters vote Democratic and 75% Republican.
About 61% of adults in Sunfield typically vote, near the U.S. average of about 62%. Among adults in Sunfield, ~15% vote Democratic, ~46% Republican, and ~39% don't vote. The map below shows estimated turnout by block group.
How Sunfield compares
Among cities within 25 miles, Sunfield leans more Republican than 24 of 81 neighbors.
Sunfield runs about 61 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while Sunfield is one of the few Republican-leaning pockets.
Politics vary noticeably by neighborhood within Sunfield. The south side is the most Republican-leaning (R+61) and the northwest side is the least Republican-leaning (R+40), a spread of about 21 points.
Why Sunfield 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 Sunfield, not a ranked or complete list of what matters most.
Sunfield votes against the grain of Illinois. Illinois leans Democratic overall, while Sunfield runs about 61 points more Republican. Low college attainment predicts Republican voting, and Sunfield sits in the bottom quarter (about 15%, below 76% of cities).
Cancer-screening access and voter turnout
Places with low colon-cancer-screening access tend to turn out at a lower rate; Sunfield, IL sits in the bottom quarter nationally on this measure. Cancer screening does not drive turnout; it reflects income, insurance, and healthcare access.
Why turnout in Sunfield looks the way it does
Areas with low high-school completion turn out at lower rates. About 83% of adults in Sunfield have completed high school, about 7 points below the U.S. average of 90%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Tamaroa, IL R+56
- St. Johns, IL R+51
- Du Quoin, IL R+42
- Pinckneyville, IL R+50
- Old Du Quoin, IL R+50
- Dowell, IL R+54
- Du Bois, IL R+58
- Scheller, IL R+63
- Sesser, IL R+53
- North City, IL R+54
Cities with Similar Populations
- Pine Ridge, OR R+37
- West Kaysville, UT R+47
- Jerome, MO R+60
- Eaton, TN R+71
- Sweet Home, TX R+72
- Burr Oak, IN R+53
- Redlawn, TX R+51
- East Otisfield, ME R+25
- Winona, KS R+79
- Mazarn, AR R+71
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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.