ZIP Code 61070

61070 is one of Illinois's ZIP codes, delivering to addresses in Rock City, Stephenson County.

City: Rock City
County: Stephenson County
State: Illinois
Prefix: 610xx

Where this code sits

61070 is part of the 610xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Rock City.

Rock City Illinois ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 61070 delivers to without sharing its boundary.

ZIP codes nearest 61070

The ZIP codes whose reference points sit closest to 61070.
ZIP code	Distance	Delivers to
ZIP code 61018	3.7 mi	Dakota, IL
ZIP code 61019	4.2 mi	Davis, IL
ZIP code 61067	7.7 mi	Ridott, IL
ZIP code 61013	8.5 mi	Cedarville, IL
ZIP code 61024	8.6 mi	Durand, IL
ZIP code 61060	9.6 mi	Orangeville, IL
ZIP code 61063	9.8 mi	Pecatonica, IL
ZIP code 53550	11 mi	Juda, WI

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 61070, plotted from its record coordinates.

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

Scope ZIP code 61070. 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.