ZIP Code 50670

50670 is one of Iowa's ZIP codes, delivering to addresses in Shell Rock, Butler County.

City: Shell Rock
County: Butler County
State: Iowa
Prefix: 506xx

Where this code sits

50670 is part of the 506xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Shell Rock.

Shell Rock Iowa ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 50670 delivers to without sharing its boundary.

319 Area code 319

ZIP codes nearest 50670

The ZIP codes whose reference points sit closest to 50670.
ZIP code	Distance	Delivers to
ZIP code 50647	6.9 mi	Janesville, IA
ZIP code 50619	7.6 mi	Clarksville, IA
ZIP code 50660	8.6 mi	New Hartford, IA
ZIP code 50677	11 mi	Waverly, IA
ZIP code 50602	11 mi	Allison, IA
ZIP code 50666	11 mi	Plainfield, IA
ZIP code 50622	13 mi	Denver, IA
ZIP code 50665	13 mi	Parkersburg, IA

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 50670, plotted from its record coordinates.

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

Scope ZIP code 50670. 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.