ZIP Code 61523

Zip Code: 61523
Type: Standard
Official USPS city name: Chillicothe
Official USPS State Code: IL
Official State Name: Illinois
ZCTA: TRUE
Population: 11055.0
Density: 79.9
Primary Official County Code: 17143
Primary Official County Name: Peoria
Official County Name: Peoria| Marshall
Official County Code: 17143| 17123
Imprecise: FALSE
Military: FALSE
Timezone: America/Chicago (09:40 AM Wednesday, August 27 2025-08-27 (GMT -0500))
Geo Point: 40.91725, -89.53549