ZIP Code 50654

50654 is one of Iowa's ZIP codes, delivering to addresses in Masonville, Delaware County.

City: Masonville
County: Delaware County
State: Iowa
Prefix: 506xx

Where this code sits

50654 is part of the 506xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Masonville.

Masonville Iowa ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 50654 delivers to without sharing its boundary.

563 Area code 563

ZIP codes nearest 50654

The ZIP codes whose reference points sit closest to 50654.
ZIP code	Distance	Delivers to
ZIP code 50682	7.2 mi	Winthrop, IA
ZIP code 52057	7.3 mi	Manchester, IA
ZIP code 52038	8.2 mi	Dundee, IA
ZIP code 50650	8.9 mi	Lamont, IA
ZIP code 52326	11 mi	Quasqueton, IA
ZIP code 52330	11 mi	Ryan, IA
ZIP code 50607	12 mi	Aurora, IA
ZIP code 52223	14 mi	Delhi, 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 50654, plotted from its record coordinates.

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

Scope ZIP code 50654. 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.