In which county is ZIP code 51535 located?

ZIP 51535 is listed under Cass, IA.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 51535: Griswold, IA

ZIP: 51535

County: Cass

Coordinates: 41.23500, -95.13750

ZIP Type: Standard

Time Zone: Central Time (CT)

Get a reliable snapshot of the Griswold, IA postal area 51535. This page summarizes county, coordinates, and local facts to help with services and location research.

Primary City	Griswold
ZIP Code	51535
County	Cass
State	IA
Latitude / Longitude	41.23500, -95.13750
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 51535 (not an exact boundary).

Geographic & Administrative Context

The geographic center of ZIP code 51535 is approximately 41.23500 (latitude) and -95.13750 (longitude). This location sits within Cass, contributing to regional planning across IA.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 51535 for mail delivery and general location reference in Cass, IA.

Some addresses near Griswold may share this ZIP due to delivery routing and local service areas.

Related ZIP Codes (Nearby)

Explore other postal codes near Griswold within IA.

Frequently Asked Questions

What is the primary city for ZIP code 51535?

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

In which county is 51535 located?

ZIP code 51535 is situated within Cass, IA.

What are the coordinates for 51535?

The approximate center point is 41.23500 (Latitude) and -95.13750 (Longitude).

Is ZIP code 51535 active?

This page lists ZIP 51535 as Listed based on the latest refresh date shown above.

Does ZIP 51535 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