The Chillicothe Post Office is located in the state of Illinois within Peoria County. This location serves 11,204 Chillicothe residents with a median income of $57,513. It's estimated that approximately 17,883 packages pass through this post office each year.
Chillicothe Post Office Location 61523
Chillicothe Illinois Local Links
Post Offices Near Chillicothe by ZIP Code
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