62671 is a Republican stronghold. About 21% of voters here vote Democratic and 79% Republican.
About 77% of adults in 62671 typically vote, above the U.S. average of about 62%. Among adults in 62671, ~16% vote Democratic, ~61% Republican, and ~23% don't vote. The map below shows estimated turnout by block group.
How 62671 compares
Among zip codes within 15 miles, 62671 leans more Republican than 7 of 9 neighbors.
62671 runs about 68 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while 62671 is one of the few Republican-leaning pockets.
Why 62671 leans the way it does
This analysis examined 14,881 data points per zip code to find what predicts political lean and turnout. The items below are a few correlations that stood out for 62671, not a ranked or complete list of what matters most.
62671 votes against the grain of Illinois. Illinois leans Democratic overall, while 62671 runs about 68 points more Republican. Rural areas vote Republican, and 62671 sits in the bottom quarter on density (about 5%, below 83% of zip codes).
High-school completion, developed land, and voter turnout
Places that combine high-school-completion-heavy adults and a rural land-use pattern tend to turn out at a higher rate, as 62671, IL does.
Why turnout in 62671 looks the way it does
Areas with high high-school completion turn out at higher rates. About 98% of adults in 62671 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 Zip Codes
Zip Codes with Similar Populations
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.