ZIP Code 61030

61030 is one of Illinois's ZIP codes, delivering to addresses in Forreston, Ogle County.

City: Forreston
County: Ogle County
State: Illinois
Prefix: 610xx

Where this code sits

61030 is part of the 610xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Forreston.

Forreston Illinois ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 61030 delivers to without sharing its boundary.

ZIP codes nearest 61030

The ZIP codes whose reference points sit closest to 61030.
ZIP code	Distance	Delivers to
ZIP code 61007	4.7 mi	Baileyville, IL
ZIP code 61039	8.7 mi	German Valley, IL
ZIP code 61078	8.9 mi	Shannon, IL
ZIP code 61054	9.2 mi	Mount Morris, IL
ZIP code 61064	9.3 mi	Polo, IL
ZIP code 61047	9.8 mi	Leaf River, IL
ZIP code 61032	13 mi	Freeport, IL
ZIP code 61046	13 mi	Lanark, 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 61030, plotted from its record coordinates.

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

Scope ZIP code 61030. 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.