Herscher leans heavily Republican by roughly 44 points: about 28% of voters vote Democratic and 72% Republican.
About 76% of adults in Herscher typically vote, above the U.S. average of about 62%. Among adults in Herscher, ~21% vote Democratic, ~55% Republican, and ~24% don't vote. The map below shows estimated turnout by block group.
How Herscher compares
Among cities within 25 miles, Herscher leans more Republican than 30 of 71 neighbors.
Herscher runs about 55 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while Herscher is one of the few Republican-leaning pockets.
Politics vary noticeably by neighborhood within Herscher. The southeast side is the most Republican-leaning (R+50) and the west side is the least Republican-leaning (R+37), a spread of about 13 points.
Why Herscher 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 Herscher, not a ranked or complete list of what matters most.
Herscher votes against the grain of Illinois. Illinois leans Democratic overall, while Herscher runs about 55 points more Republican. A high family-household share predicts Republican voting, and about 77% of households in Herscher are family households, above 82% of cities.
High-school completion, uninsured rate, and voter turnout
Places that combine high-school-completion-heavy adults and a low uninsured rate tend to turn out at a higher rate, as Herscher, IL does.
Why turnout in Herscher looks the way it does
Areas with high high-school completion turn out at higher rates. About 98% of adults in Herscher have completed high school, about 6 points above the Illinois average of 92%. Learn more about the findings and methodology on the political spectrum map.
Nearby Cities
- Goodrich, IL R+48
- Buckingham, IL R+51
- Union Hill, IL R+50
- Irwin, IL R+47
- Cabery, IL R+57
- Bonfield, IL R+50
- Lehigh, IL R+48
- Limestone, IL R+46
- Reddick, IL R+49
- Greenwich, IL R+41
Cities with Similar Populations
- Entiat, WA R+35
- Swanton, MD R+39
- Canadian, OK R+67
- Creston, MT R+41
- Ralls, TX R+49
- Hunker, PA R+37
- Lavallette, NJ R+30
- Normalville, PA R+60
- Pine Prairie, LA R+66
- Etna, OH R+24
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.