ZIP Code 61010

61010 is one of Illinois's ZIP codes, delivering to addresses in Byron, Ogle County.

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

Where this code sits

61010 is part of the 610xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Byron.

Byron Illinois ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 61010 delivers to without sharing its boundary.

ZIP codes nearest 61010

The ZIP codes whose reference points sit closest to 61010.
ZIP code	Distance	Delivers to
ZIP code 61084	4.0 mi	Stillman Valley, IL
ZIP code 61047	6.9 mi	Leaf River, IL
ZIP code 61077	8.8 mi	Seward, IL
ZIP code 61061	9.2 mi	Oregon, IL
ZIP code 61020	9.6 mi	Davis Junction, IL
ZIP code 61015	9.8 mi	Chana, IL
ZIP code 61043	9.8 mi	Holcomb, IL
ZIP code 61088	10 mi	Winnebago, 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 61010, plotted from its record coordinates.

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

Scope ZIP code 61010. 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.