ZIP Code 52161

52161 is one of Iowa's ZIP codes, delivering to addresses in Ossian, Winneshiek County.

City: Ossian
County: Winneshiek County
State: Iowa
Prefix: 521xx

Where this code sits

52161 is part of the 521xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Ossian.

Ossian Iowa ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 52161 delivers to without sharing its boundary.

563 Area code 563

ZIP codes nearest 52161

The ZIP codes whose reference points sit closest to 52161.
ZIP code	Distance	Delivers to
ZIP code 52133	5.5 mi	Castalia, IA
ZIP code 52144	7.1 mi	Fort Atkinson, IA
ZIP code 52132	8.1 mi	Calmar, IA
ZIP code 52166	9.5 mi	Saint Lucas, IA
ZIP code 52168	9.7 mi	Spillville, IA
ZIP code 52135	11 mi	Clermont, IA
ZIP code 52101	13 mi	Decorah, IA
ZIP code 52175	14 mi	West Union, 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 52161, plotted from its record coordinates.

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

Scope ZIP code 52161. 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.