ZIP Code 52037

52037 is one of Iowa's ZIP codes, delivering to addresses in Delmar, Clinton County.

City: Delmar
County: Clinton County
State: Iowa
Prefix: 520xx

Where this code sits

52037 is part of the 520xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Delmar.

Delmar Iowa ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 52037 delivers to without sharing its boundary.

563 Area code 563

ZIP codes nearest 52037

The ZIP codes whose reference points sit closest to 52037.
ZIP code	Distance	Delivers to
ZIP code 52774	6.1 mi	Welton, IA
ZIP code 52060	6.6 mi	Maquoketa, IA
ZIP code 52731	6.8 mi	Charlotte, IA
ZIP code 52074	8.7 mi	Spragueville, IA
ZIP code 52751	11 mi	Grand Mound, IA
ZIP code 52030	11 mi	Andrew, IA
ZIP code 52254	11 mi	Lost Nation, IA
ZIP code 52069	12 mi	Preston, 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 52037, plotted from its record coordinates.

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

Scope ZIP code 52037. 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.