Lewis Iowa ZIP Codes

Lewis holds a single ZIP code.

Every ZIP code in Lewis

The complete list of Lewis, Iowa ZIP codes with the county each falls in.
ZIP code	County
51544	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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Lewis codes above are listed without a column we would have to invent.

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

Every Iowa ZIP prefix and the region it covers →

Area codes covering Lewis

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 Lewis occupies.

712 Area code 712

Lewis Iowa area codes in full →

Where Lewis's ZIP codes sit

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

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

Cities near Lewis

The closest places to Lewis with their own ZIP code list, nearest first.
City	Distance	ZIP codes
Griswold Iowa ZIP codes	5.7 mi	1 ZIP code
Atlantic Iowa ZIP codes	6.8 mi	1 ZIP code
Marne Iowa ZIP codes	9.9 mi	1 ZIP code
Cumberland Iowa ZIP codes	11 mi	1 ZIP code
Elliott Iowa ZIP codes	12 mi	1 ZIP code
Wiota Iowa ZIP codes	12 mi	1 ZIP code
Grant Iowa ZIP codes	12 mi	1 ZIP code
Walnut Iowa ZIP codes	15 mi	1 ZIP code

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