ZIP Code 50478

50478 is one of Iowa's ZIP codes, delivering to addresses in Thompson, Winnebago County.

City: Thompson
County: Winnebago County
State: Iowa
Prefix: 504xx

Where this code sits

50478 is part of the 504xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Thompson.

Thompson Iowa ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 50478 delivers to without sharing its boundary.

641 Area code 641

ZIP codes nearest 50478

The ZIP codes whose reference points sit closest to 50478.
ZIP code	Distance	Delivers to
ZIP code 50453	4.4 mi	Leland, IA
ZIP code 50473	7.8 mi	Scarville, IA
ZIP code 50424	9.4 mi	Buffalo Center, IA
ZIP code 50436	10 mi	Forest City, IA
ZIP code 50465	10 mi	Rake, IA
ZIP code 56051	11 mi	Kiester, MN
ZIP code 50450	11 mi	Lake Mills, IA
ZIP code 50432	12 mi	Crystal Lake, 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 50478, plotted from its record coordinates.

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

Scope ZIP code 50478. 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.