Brownfield is a Republican stronghold. About 19% of voters here vote Democratic and 81% Republican.
About 69% of adults in Brownfield typically vote, above the U.S. average of about 62%. Among adults in Brownfield, ~13% vote Democratic, ~56% Republican, and ~31% don't vote. The map below shows estimated turnout by block group.
How Brownfield compares
Among cities within 25 miles, Brownfield leans more Republican than 56 of 85 neighbors.
Brownfield runs about 72 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while Brownfield is one of the few Republican-leaning pockets.
Why Brownfield 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 Brownfield, not a ranked or complete list of what matters most.
Rural areas vote Republican. About 4% of residents in Brownfield live in densely developed areas, about 28 points below the Illinois average of 33%. A high family-household share predicts Republican voting, and about 87% of households in Brownfield are family households, above 98% of cities. Brownfield runs against the grain of Illinois, a Republican-leaning pocket in a Democratic-leaning state.
Paved land cover and Republican lean
Places with little paved surface tend to lean Republican; Brownfield, IL sits in the bottom quarter nationally on this measure. Paved ground does not change how people vote; it mostly reflects how urban and built-up a place is.
Why turnout in Brownfield looks the way it does
Homeowners vote more often than renters. About 98% of households in Brownfield own their home, about 18 points above the Illinois average of 80%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Rock, IL R+58
- Temple Hill, IL R+63
- Hamletsburg, IL R+59
- Reevesville, IL R+60
- Glendale, IL R+58
- Grantsburg, IL R+47
- Golconda, IL R+60
- Rosebud, IL R+60
- Robbs, IL R+57
Cities with Similar Populations
- Paces, VA R+30
- Osage, AR R+65
- Parkersburg, IN R+61
- Harkins Crossroads, AL R+60
- Pendroy, MT R+60
- Peason, LA R+91
- Olympia, NC R+61
- Hammond, TX R+71
- Portland Mills, PA R+50
- Goree, TX R+74
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.