Atlantic Iowa ZIP Codes

Atlantic holds a single ZIP code.

Every ZIP code in Atlantic

The complete list of Atlantic, Iowa ZIP codes with the county each falls in.
ZIP code	County
50022	Cass 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Atlantic codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for Atlantic. 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 Atlantic ZIP code begins 500. Those first three digits identify the sectional center facility that processes mail for this part of Iowa. Statewide that range covers 68 ZIP codes, so Atlantic accounts for 1% of it.

Every Iowa ZIP prefix and the region it covers →

Area codes covering Atlantic

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 Atlantic occupies.

712 Area code 712

Atlantic Iowa area codes in full →

Where Atlantic's ZIP codes sit

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

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

Cities near Atlantic

The closest places to Atlantic with their own ZIP code list, nearest first.
City	Distance	ZIP codes
Marne Iowa ZIP codes	6.0 mi	1 ZIP code
Lewis Iowa ZIP codes	6.8 mi	1 ZIP code
Wiota Iowa ZIP codes	7.0 mi	1 ZIP code
Cumberland Iowa ZIP codes	11 mi	1 ZIP code
Brayton Iowa ZIP codes	12 mi	1 ZIP code
Walnut Iowa ZIP codes	12 mi	1 ZIP code
Griswold Iowa ZIP codes	13 mi	1 ZIP code
Anita Iowa ZIP codes	14 mi	1 ZIP code

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