ZIP Code 52040

52040 is one of Iowa's ZIP codes, delivering to addresses in Dyersville, Dubuque County.

City: Dyersville
County: Dubuque County
State: Iowa
Prefix: 520xx

Where this code sits

52040 is part of the 520xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Dyersville.

Dyersville Iowa ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 52040 delivers to without sharing its boundary.

563 Area code 563

ZIP codes nearest 52040

The ZIP codes whose reference points sit closest to 52040.
ZIP code	Distance	Delivers to
ZIP code 52065	5.9 mi	New Vienna, IA
ZIP code 52046	6.2 mi	Farley, IA
ZIP code 52078	6.3 mi	Worthington, IA
ZIP code 52056	7.2 mi	Luxemburg, IA
ZIP code 52041	7.3 mi	Earlville, IA
ZIP code 52036	9.8 mi	Delaware, IA
ZIP code 52045	9.9 mi	Epworth, IA
ZIP code 52053	10 mi	Holy Cross, 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 52040, plotted from its record coordinates.

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

Scope ZIP code 52040. 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.