ZIP Code 50570

50570 is one of Iowa's ZIP codes, delivering to addresses in Ottosen, Humboldt County.

City: Ottosen
County: Humboldt County
State: Iowa
Prefix: 505xx

Where this code sits

50570 is part of the 505xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Ottosen.

Ottosen Iowa ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 50570 delivers to without sharing its boundary.

515 Area code 515

ZIP codes nearest 50570

The ZIP codes whose reference points sit closest to 50570.
ZIP code	Distance	Delivers to
ZIP code 50519	5.1 mi	Bode, IA
ZIP code 50520	6.8 mi	Bradgate, IA
ZIP code 50597	6.8 mi	West Bend, IA
ZIP code 50581	8.4 mi	Rolfe, IA
ZIP code 50582	9.5 mi	Rutland, IA
ZIP code 50558	10 mi	Livermore, IA
ZIP code 50541	12 mi	Gilmore City, IA
ZIP code 50573	12 mi	Plover, 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 50570, plotted from its record coordinates.

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

Scope ZIP code 50570. 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.