In which county is ZIP code 51638 located?

ZIP 51638 is listed under Page, IA.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 51638: Essex, IA

ZIP: 51638

County: Page

Coordinates: 40.84040, -95.28880

ZIP Type: Standard

Time Zone: Central Time (CT)

Explore detailed information for ZIP code 51638 in Essex, IA. We include verified county details for Page plus key geographic references used for mapping and logistics.

Primary City	Essex
ZIP Code	51638
County	Page
State	IA
Latitude / Longitude	40.84040, -95.28880
ZIP Type	Standard
Time Zone	Central Time (CT)
Data Updated	2026-01-08

Maps & Useful Links

Open in Maps: Google Maps · OpenStreetMap

These links show the approximate center point for ZIP 51638 (not an exact boundary).

Geographic & Administrative Context

Coordinates for 51638 are listed as 40.84040 / -95.28880, useful for GPS and service checks in and around Essex, IA.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 51638 for mail delivery and general location reference in Page, IA.

Coverage may include nearby neighborhoods and adjacent unincorporated areas commonly associated with Essex.

Related ZIP Codes (Nearby)

Explore other postal codes near Essex within IA.

Frequently Asked Questions

What is the primary city for ZIP code 51638?

The primary city for this ZIP code is Essex, located in IA.

In which county is 51638 located?

ZIP code 51638 is situated within Page, IA.

What are the coordinates for 51638?

The approximate center point is 40.84040 (Latitude) and -95.28880 (Longitude).

Is ZIP code 51638 active?

This page lists ZIP 51638 as Listed based on the latest refresh date shown above.

Does ZIP 51638 cover multiple areas?

Yes. Many ZIP codes cover multiple neighborhoods or nearby areas. For exact boundaries, use official mapping tools.

Methodology & Data Notes

How we build this page: We generate this page from a structured ZIP dataset and refresh key fields (city, county, and coordinates) during scheduled updates. Coordinates represent an approximate center point, not an official boundary map.
Sources: Public ZIP reference datasets and geographic coordinate references. If you use specific sources (e.g., USPS, Census), list them on your About/Methodology page.

Page updated: 2026-01-08