Avoca Iowa ZIP Codes

Avoca holds a single ZIP code.

Every ZIP code in Avoca

The complete list of Avoca, Iowa ZIP codes with the county each falls in.
ZIP code	County
51521	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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Avoca codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for Avoca. 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 Avoca 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 Avoca accounts for 2% of it.

Every Iowa ZIP prefix and the region it covers →

Area codes covering Avoca

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 Avoca occupies.

712 Area code 712

Avoca Iowa area codes in full →

Where Avoca's ZIP codes sit

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

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

Cities near Avoca

The closest places to Avoca with their own ZIP code list, nearest first.
City	Distance	ZIP codes
Shelby Iowa ZIP codes	6.0 mi	1 ZIP code
Walnut Iowa ZIP codes	6.1 mi	1 ZIP code
Hancock Iowa ZIP codes	6.2 mi	1 ZIP code
Minden Iowa ZIP codes	11 mi	1 ZIP code
Harlan Iowa ZIP codes	12 mi	2 ZIP codes
Marne Iowa ZIP codes	12 mi	1 ZIP code
Oakland Iowa ZIP codes	12 mi	1 ZIP code
Persia Iowa ZIP codes	14 mi	1 ZIP code

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