Postal Code
51638
Postal Code 51638
Country United States
ISO Code US
ZIP Code 51638

Postal Information

Postal Code 51638
City Essex
County Page
Region Iowa
Country United States

Nearby Postal Codes

Distances are calculated geographically from this postal code, not from administrative boundaries.

Postal Code City Region Coordinates
51603 Shenandoah Iowa 9.6 km
51602 Shenandoah Iowa 9.9 km
51601 Shenandoah Iowa 10.3 km
51645 Imogene Iowa 11.5 km
51591 Red Oak Iowa 16.3 km
51656 Yorktown Iowa 16.9 km
51639 Farragut Iowa 19.7 km
51566 Red Oak Iowa 20.5 km
51636 Coin Iowa 20.5 km
51533 Emerson Iowa 22.1 km
51649 Randolph Iowa 22.6 km
51573 Stanton Iowa 23.4 km
51632 Clarinda Iowa 24.7 km
51647 Northboro Iowa 25.4 km
51540 Hastings Iowa 26.4 km
51651 Shambaugh Iowa 26.4 km

Postal Hierarchy

ZIP Code51638

ZIP Code (5 digits) with optional ZIP+4 extension.

About ZIP Code 51638 in Essex, Iowa

ZIP Code 51638 for Essex, Iowa is part of the United States postal code system, which uses a numeric code of 5 (or 5+4) digits (e.g. 10001). Addresses here are organised as State → County → City. Within the code structure it maps to ZIP Code 51638.

Administratively it is recorded in Page, Iowa within United States. Postal codes are assigned by delivery route rather than by administrative boundary, so a single code can cover more than one locality and a locality can fall under several codes.

No building-level records are held for this code in the imported dataset, so only the code and its location details are shown. The absence of records does not mean the zip code is unused.

Couriers, e-commerce checkout forms and address autocomplete tools all rely on the zip code to route mail and to check that a stated address matches the code. Because a zip code identifies a delivery area rather than a single building, two addresses that share the same code can still be some distance apart.

Always write United States ZIP Code in full when completing a form, including any leading zero. Enter a valid US ZIP Code, e.g. 10001 or 10001-1234. Data source: a third-party open dataset. This is a reference snapshot, not a live government feed, so confirm the code with the sender, carrier or postal authority before relying on it.

Buildings & Addresses for This Code

No building-level records were found for this postal code in the imported dataset.
Information provided on CodeReff is for reference purposes only. Always verify financial and banking details with the relevant institution before use.