ZIP Code 51656

51656 is one of Iowa's ZIP codes, delivering to addresses in Yorktown, Page County.

City: Yorktown
County: Page County
State: Iowa
Prefix: 516xx

Where this code sits

51656 is part of the 516xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Yorktown.

Yorktown Iowa ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 51656 delivers to without sharing its boundary.

712 Area code 712

ZIP codes nearest 51656

The ZIP codes whose reference points sit closest to 51656.
ZIP code	Distance	Delivers to
ZIP code 51636	5.9 mi	Coin, IA
ZIP code 51632	6.2 mi	Clarinda, IA
ZIP code 51637	8.1 mi	College Springs, IA
ZIP code 51651	8.8 mi	Shambaugh, IA
ZIP code 51630	9.0 mi	Blanchard, IA
ZIP code 51638	9.9 mi	Essex, IA
ZIP code 51601	11 mi	Shenandoah, IA
ZIP code 51603	12 mi	Shenandoah, 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 51656, plotted from its record coordinates.

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

Scope ZIP code 51656. 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.