Emerson Iowa ZIP Codes

Emerson holds a single ZIP code.

Every ZIP code in Emerson

The complete list of Emerson, Iowa ZIP codes with the county each falls in.
ZIP code	County
51533	Mills 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Emerson codes above are listed without a column we would have to invent.

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

Every Iowa ZIP prefix and the region it covers →

Area codes covering Emerson

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 Emerson occupies.

712 Area code 712

Emerson Iowa area codes in full →

Where Emerson's ZIP codes sit

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

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

Cities near Emerson

The closest places to Emerson with their own ZIP code list, nearest first.
City	Distance	ZIP codes
Hastings Iowa ZIP codes	4.8 mi	1 ZIP code
Henderson Iowa ZIP codes	8.5 mi	1 ZIP code
Red Oak Iowa ZIP codes	9.3 mi	2 ZIP codes
Malvern Iowa ZIP codes	9.5 mi	1 ZIP code
Imogene Iowa ZIP codes	9.8 mi	1 ZIP code
Macedonia Iowa ZIP codes	12 mi	1 ZIP code
Randolph Iowa ZIP codes	13 mi	1 ZIP code
Essex Iowa ZIP codes	14 mi	1 ZIP code

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