East Peoria leans Republican by roughly 22 points: about 39% of voters vote Democratic and 61% Republican.
About 83% of adults in East Peoria typically vote, above the U.S. average of about 62%. Among adults in East Peoria, ~32% vote Democratic, ~51% Republican, and ~17% don't vote. The map below shows estimated turnout by block group.
How East Peoria compares
Among cities within 25 miles, East Peoria leans more Republican than 12 of 77 neighbors.
East Peoria runs about 34 points more Republican than Illinois as a whole. Illinois leans Democratic overall, while East Peoria is one of the few Republican-leaning pockets.
Politics vary noticeably by neighborhood within East Peoria. The southeast side is the most Republican-leaning (R+29) and the northwest side is the least Republican-leaning (R+17), a spread of about 12 points.
Why East Peoria 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 East Peoria, not a ranked or complete list of what matters most.
East Peoria votes Republican even though it is densely developed (about 51%, well above the Illinois average of 33%). State and regional patterns outweigh the Democratic lean that density usually predicts here. East Peoria runs against the grain of Illinois, a Republican-leaning pocket in a Democratic-leaning state.
Walkability and Democratic lean
Places with a highly walkable street grid tend to lean Democratic; East Peoria, IL sits in the top tenth nationally on this measure. A walkable street grid does not change how people vote; it mostly reflects how urban a place is.
Why turnout in East Peoria looks the way it does
Turnout in East Peoria 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 Cities
- Creve Coeur, IL R+25
- Harvard Hills, IL R+23
- Washington, IL R+25
- West Peoria, IL D+26
- Peoria Heights, IL D+11
- Marquette Heights, IL R+31
- Peoria, IL D+31
- Morton, IL R+25
- Groveland, IL R+34
- North Pekin, IL R+31
Cities with Similar Populations
- Buffalo, MN R+26
- Hercules, CA D+46
- New River, AZ R+44
- Temperance, MI R+27
- Abbeville, LA R+29
- South St. Paul, MN D+18
- Five Corners, WA Even
- Stanford, CA D+64
- Olivehurst, CA R+11
- Altamont, OR R+35
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.