Essex Iowa ZIP Codes

Essex holds a single ZIP code.

Every ZIP code in Essex

The complete list of Essex, Iowa ZIP codes with the county each falls in.
ZIP code	County
51638	Page 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Essex codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for Essex. 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 Essex ZIP code begins 516. Those first three digits identify the sectional center facility that processes mail for this part of Iowa. Statewide that range covers 21 ZIP codes, so Essex accounts for 5% of it.

Every Iowa ZIP prefix and the region it covers →

Area codes covering Essex

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 Essex occupies.

712 Area code 712

Essex Iowa area codes in full →

Where Essex's ZIP codes sit

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

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

Cities near Essex

The closest places to Essex with their own ZIP code list, nearest first.
City	Distance	ZIP codes
Shenandoah Iowa ZIP codes	6.2 mi	2 ZIP codes
Imogene Iowa ZIP codes	7.2 mi	1 ZIP code
Yorktown Iowa ZIP codes	10 mi	1 ZIP code
Farragut Iowa ZIP codes	12 mi	1 ZIP code
Coin Iowa ZIP codes	13 mi	1 ZIP code
Red Oak Iowa ZIP codes	13 mi	2 ZIP codes
Emerson Iowa ZIP codes	14 mi	1 ZIP code
Randolph Iowa ZIP codes	14 mi	1 ZIP code

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