Simpson is a Republican stronghold. About 23% of voters here vote Democratic and 77% Republican.
About 60% of adults in Simpson typically vote, near the U.S. average of about 62%. Among adults in Simpson, ~14% vote Democratic, ~46% Republican, and ~40% don't vote. The map below shows estimated turnout by block group.
How Simpson compares
Among cities within 25 miles, Simpson leans more Republican than 19 of 82 neighbors.
Simpson runs about 65 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while Simpson is one of the few Republican-leaning pockets.
Why Simpson 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 Simpson, not a ranked or complete list of what matters most.
Rural areas vote Republican. About 5% of residents in Simpson live in densely developed areas, about 28 points below the Illinois average of 33%. Simpson runs against the grain of Illinois, a Republican-leaning pocket in a Democratic-leaning state.
Population density, never-married share, and Republican lean
Places that combine low population density and a never-married-heavy adult population tend to lean Republican, as Simpson, IL does.
Why turnout in Simpson looks the way it does
Turnout in Simpson sits close to the national pattern. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Robbs, IL R+57
- Wartrace, IL D+13
- Glendale, IL R+58
- Tunnel Hill, IL R+56
- McCormick, IL R+59
- Grantsburg, IL R+47
- Reevesville, IL R+60
- Ozark, IL R+54
- Rock, IL R+58
Cities with Similar Populations
- York Hamlet, NY R+32
- Esdaile, WI R+34
- Junction City, MO R+59
- Johnson, NY R+33
- Davis City, IA R+60
- Elmhurst, PA R+8
- Dean, TX R+78
- Redwood Lodge, CA D+31
- Briar, TX R+67
- Summer City, TN R+70
All Local Stats
Home Services
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.