In which county is ZIP code 51527 located?

ZIP 51527 is listed under Shelby, IA.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 51527: Defiance, IA

ZIP: 51527

County: Shelby

Coordinates: 41.80530, -95.35370

ZIP Type: Standard

Time Zone: Central Time (CT)

Explore detailed information for ZIP code 51527 in Defiance, IA. We include verified county details for Shelby plus key geographic references used for mapping and logistics.

Primary City	Defiance
ZIP Code	51527
County	Shelby
State	IA
Latitude / Longitude	41.80530, -95.35370
ZIP Type	Standard
Time Zone	Central Time (CT)
Data Updated	2026-01-08

Maps & Useful Links

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These links show the approximate center point for ZIP 51527 (not an exact boundary).

Geographic & Administrative Context

Coordinates for 51527 are listed as 41.80530 / -95.35370, useful for GPS and service checks in and around Defiance, IA.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 51527 for mail delivery and general location reference in Shelby, IA.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Defiance within IA.

Frequently Asked Questions

What is the primary city for ZIP code 51527?

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

In which county is 51527 located?

ZIP code 51527 is situated within Shelby, IA.

What are the coordinates for 51527?

The approximate center point is 41.80530 (Latitude) and -95.35370 (Longitude).

Is ZIP code 51527 active?

This page lists ZIP 51527 as Listed based on the latest refresh date shown above.

Does ZIP 51527 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