ZIP Code 51565

51565 is one of Iowa's ZIP codes, delivering to addresses in Portsmouth, Shelby County.

City: Portsmouth
County: Shelby County
State: Iowa
Prefix: 515xx

Where this code sits

51565 is part of the 515xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Portsmouth.

Portsmouth Iowa ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 51565 delivers to without sharing its boundary.

712 Area code 712

ZIP codes nearest 51565

The ZIP codes whose reference points sit closest to 51565.
ZIP code	Distance	Delivers to
ZIP code 51562	5.7 mi	Panama, IA
ZIP code 51563	6.4 mi	Persia, IA
ZIP code 51578	7.7 mi	Westphalia, IA
ZIP code 51570	8.6 mi	Shelby, IA
ZIP code 51537	10 mi	Harlan, IA
ZIP code 51530	11 mi	Earling, IA
ZIP code 51579	12 mi	Woodbine, IA
ZIP code 51553	13 mi	Minden, 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 51565, plotted from its record coordinates.

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

Scope ZIP code 51565. 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.