Archer, IL Political Map | Democrat & Republican Areas in Archer

Archer leans Republican by roughly 28 points: about 36% of voters vote Democratic and 64% Republican.

 
Archer, IL block-group political-lean map
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About 79% of adults in Archer typically vote, above the U.S. average of about 62%. Among adults in Archer, ~28% vote Democratic, ~51% Republican, and ~21% don't vote. The map below shows estimated turnout by block group.

Archer, IL block-group voter-turnout map
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How Archer compares

Among cities within 25 miles, Archer leans more Republican than 9 of 73 neighbors.

Archer runs about 38 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while Archer is one of the few Republican-leaning pockets.

Why Archer 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 Archer, not a ranked or complete list of what matters most.

Archer votes Republican even though it is densely developed (about 39%, modestly above the Illinois average of 33%). State and regional patterns outweigh the Democratic lean that density usually predicts here. Archer runs against the grain of Illinois, a Republican-leaning pocket in a Democratic-leaning state.

Renting and voter turnout

Places with homeowner-heavy households tend to turn out at a higher rate; Archer, IL sits in the bottom tenth nationally on this measure.

Why turnout in Archer looks the way it does

Homeowners vote more often than renters. About 96% of households in Archer own their home, about 17 points above the Illinois average of 80%. Learn more about the findings and methodology on the political spectrum map.

Cities with Similar Populations

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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.