Osman leans heavily Republican by roughly 42 points: about 29% of voters vote Democratic and 71% Republican.
About 86% of adults in Osman typically vote, above the U.S. average of about 62%. Among adults in Osman, ~25% vote Democratic, ~61% Republican, and ~14% don't vote. The map below shows estimated turnout by block group.
How Osman compares
Among cities within 25 miles, Osman leans more Republican than 24 of 57 neighbors.
Osman runs about 52 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while Osman is one of the few Republican-leaning pockets.
Politics vary noticeably by neighborhood within Osman. The west side is the most Republican-leaning (R+53) and the east side is the least Republican-leaning (R+35), a spread of about 18 points.
Why Osman 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 Osman, not a ranked or complete list of what matters most.
Osman votes against the grain of Illinois. Illinois leans Democratic overall, while Osman runs about 52 points more Republican. A high family-household share predicts Republican voting, and about 85% of households in Osman are family households, above 97% of cities.
Walkability and Republican lean
Places with a low walkability score tend to lean Republican; Osman, IL sits below the national average on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in Osman looks the way it does
Areas with strong routine healthcare access turn out at higher rates. Osman 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 Osman own their home, about 20 points above the U.S. average of 75%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Lotus, IL R+45
- Fisher, IL R+47
- Bellflower, IL R+53
- Mansfield, IL R+36
- Mahomet, IL R+11
- Foosland, IL R+48
- Dewey, IL R+42
- Kumler, IL R+47
- Harpster, IL R+56
- Glen Avon, IL R+49
Cities with Similar Populations
- Aquilla, MO R+71
- Wilmot, KS R+63
- Sand, TX R+82
- Grand Summit, KS R+71
- Whickerville, KY R+73
- Rhea, OK R+80
- Jumbo, KY R+68
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.