In which county is ZIP code 51577 located?

ZIP 51577 is listed under Pottawattamie, IA.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 51577: Walnut, IA

ZIP: 51577

County: Pottawattamie

Coordinates: 41.46230, -95.21800

ZIP Type: Standard

Time Zone: Central Time (CT)

This profile provides an in-depth look at ZIP code 51577, serving Walnut in IA. It lies in Pottawattamie and supports delivery, planning, and address verification.

Primary City	Walnut
ZIP Code	51577
County	Pottawattamie
State	IA
Latitude / Longitude	41.46230, -95.21800
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 51577 (not an exact boundary).

Geographic & Administrative Context

Coordinates for 51577 are listed as 41.46230 / -95.21800, useful for GPS and service checks in and around Walnut, IA.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 51577 for mail delivery and general location reference in Pottawattamie, IA.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Walnut within IA.

Frequently Asked Questions

What is the primary city for ZIP code 51577?

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

In which county is 51577 located?

ZIP code 51577 is situated within Pottawattamie, IA.

What are the coordinates for 51577?

The approximate center point is 41.46230 (Latitude) and -95.21800 (Longitude).

Is ZIP code 51577 active?

This page lists ZIP 51577 as Listed based on the latest refresh date shown above.

Does ZIP 51577 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