ZIP Code 61051

61051 is one of Illinois's ZIP codes, delivering to addresses in Milledgeville, Carroll County.

City: Milledgeville
County: Carroll County
State: Illinois
Prefix: 610xx

Where this code sits

61051 is part of the 610xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Milledgeville.

Milledgeville Illinois ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 61051 delivers to without sharing its boundary.

ZIP codes nearest 61051

The ZIP codes whose reference points sit closest to 61051.
ZIP code	Distance	Delivers to
ZIP code 61014	6.3 mi	Chadwick, IL
ZIP code 61046	9.0 mi	Lanark, IL
ZIP code 61064	9.5 mi	Polo, IL
ZIP code 61081	12 mi	Sterling, IL
ZIP code 61037	13 mi	Galt, IL
ZIP code 61091	13 mi	Woosung, IL
ZIP code 61078	14 mi	Shannon, IL
ZIP code 61053	14 mi	Mount Carroll, 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 61051, plotted from its record coordinates.

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

Scope ZIP code 61051. 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.