Hancock Iowa ZIP Codes

Hancock holds a single ZIP code.

Every ZIP code in Hancock

The complete list of Hancock, Iowa ZIP codes with the county each falls in.
ZIP code	County
51536	Pottawattamie County

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Hancock codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for Hancock. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.

How these codes cluster

Every Hancock ZIP code begins 515. Those first three digits identify the sectional center facility that processes mail for this part of Iowa. Statewide that range covers 57 ZIP codes, so Hancock accounts for 2% of it.

Every Iowa ZIP prefix and the region it covers →

Area codes covering Hancock

ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The code below serves the same ground Hancock occupies.

712 Area code 712

Hancock Iowa area codes in full →

Where Hancock's ZIP codes sit

Each point is one Hancock ZIP code, plotted from its record coordinates.

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

Cities near Hancock

The closest places to Hancock with their own ZIP code list, nearest first.
City	Distance	ZIP codes
Oakland Iowa ZIP codes	6.2 mi	1 ZIP code
Avoca Iowa ZIP codes	6.2 mi	1 ZIP code
Shelby Iowa ZIP codes	9.0 mi	1 ZIP code
Walnut Iowa ZIP codes	9.8 mi	1 ZIP code
Minden Iowa ZIP codes	11 mi	1 ZIP code
Carson Iowa ZIP codes	11 mi	1 ZIP code
Marne Iowa ZIP codes	13 mi	1 ZIP code
Neola Iowa ZIP codes	14 mi	1 ZIP code

Straight-line distance between place reference points, not driving distance.