ZIP Code 61523

61523 is one of Illinois's ZIP codes, delivering to addresses in Chillicothe, Peoria County.

City: Chillicothe
County: Peoria County
State: Illinois
Prefix: 615xx

Where this code sits

61523 is part of the 615xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Chillicothe.

Chillicothe Illinois ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 61523 delivers to without sharing its boundary.

ZIP codes nearest 61523

The ZIP codes whose reference points sit closest to 61523.
ZIP code	Distance	Delivers to
ZIP code 61652	1.7 mi	Peoria, IL
ZIP code 61562	1.9 mi	Rome, IL
ZIP code 61526	5.1 mi	Edelstein, IL
ZIP code 61552	6.6 mi	Mossville, IL
ZIP code 61545	7.3 mi	Lowpoint, IL
ZIP code 61525	8.0 mi	Dunlap, IL
ZIP code 61565	8.2 mi	Sparland, IL
ZIP code 61548	9.0 mi	Metamora, IL

Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.

Each point is the reference point for 61523, plotted from its record coordinates.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Scope ZIP code 61523. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.