Bond County leans heavily Republican by roughly 40 points: about 30% of voters vote Democratic and 70% Republican.
About 70% of adults in Bond County typically vote, above the U.S. average of about 62%. Among adults in Bond County, ~21% vote Democratic, ~49% Republican, and ~30% don't vote. The map below shows estimated turnout by block group.
How Bond County compares
Among counties within 50 miles, Bond County leans more Republican than 3 of 14 neighbors.
Bond County runs about 50 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while Bond County is one of the few Republican-leaning pockets.
Politics vary noticeably by city within Bond County. The southeast side is the most Republican-leaning (R+60) and the south side is the least Republican-leaning (R+38), a spread of about 23 points.
Why Bond County leans the way it does
This analysis examined 14,881 data points per county to find what predicts political lean and turnout. The items below are a few correlations that stood out for Bond County, not a ranked or complete list of what matters most.
Bond County votes against the grain of Illinois. Illinois leans Democratic overall, while Bond County runs about 50 points more Republican. Car-dependent areas vote Republican, and about 83% of residents in Bond County drive to work alone, above 86% of counties.
Population density and Democratic lean
Places with high population density tend to lean Democratic; Bond County, IL sits above the national average on this measure.
Why turnout in Bond County looks the way it does
Turnout in Bond County sits close to the national pattern. Routine healthcare access, homeownership, education, and food security all land near their national averages here. Learn more about the findings and methodology on the political spectrum map.
Nearby Counties
- Clinton County, IL R+47
- Montgomery County, IL R+44
- Fayette County, IL R+59
- Marion County, IL R+47
- Madison County, IL R+11
- Macoupin County, IL R+42
- Washington County, IL R+53
- St. Clair County, IL D+13
- Christian County, IL R+45
- St. Louis City, MO D+65
Counties with Similar Populations
- Taylor County, WV R+55
- Rush County, IN R+57
- Jackson County, AR R+48
- Robertson County, TX R+35
- Dixie County, FL R+67
- Piatt County, IL R+35
- Baker County, OR R+41
- Giles County, VA R+58
- Iowa County, IA R+38
- Piscataquis County, ME R+34
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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.