ZIP Code 52638

52638 is one of Iowa's ZIP codes, delivering to addresses in Middletown, Des Moines County.

City: Middletown
County: Des Moines County
State: Iowa
Prefix: 526xx

Where this code sits

52638 is part of the 526xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Middletown.

Middletown Iowa ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 52638 delivers to without sharing its boundary.

319 Area code 319

ZIP codes nearest 52638

The ZIP codes whose reference points sit closest to 52638.
ZIP code	Distance	Delivers to
ZIP code 52623	3.1 mi	Danville, IA
ZIP code 52655	4.4 mi	West Burlington, IA
ZIP code 52624	7.2 mi	Denmark, IA
ZIP code 52601	7.8 mi	Burlington, IA
ZIP code 52658	8.7 mi	Wever, IA
ZIP code 52650	8.8 mi	Sperry, IA
ZIP code 52645	9.3 mi	New London, IA
ZIP code 52660	11 mi	Yarmouth, 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 52638, plotted from its record coordinates.

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

Scope ZIP code 52638. 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.