In which county is ZIP code 51240 located?

ZIP 51240 is listed under Lyon, IA.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 51240: Inwood, IA

ZIP: 51240

County: Lyon

Coordinates: 43.30470, -96.43630

ZIP Type: Standard

Time Zone: Central Time (CT)

Explore detailed information for ZIP code 51240 in Inwood, IA. We include verified county details for Lyon plus key geographic references used for mapping and logistics.

Primary City	Inwood
ZIP Code	51240
County	Lyon
State	IA
Latitude / Longitude	43.30470, -96.43630
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 51240 (not an exact boundary).

Geographic & Administrative Context

For mapping and verification, 51240 is commonly represented around 43.30470, -96.43630. These coordinates help identify the general area within Lyon, IA.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 51240 for mail delivery and general location reference in Lyon, IA.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Inwood within IA.

Frequently Asked Questions

What is the primary city for ZIP code 51240?

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

In which county is 51240 located?

ZIP code 51240 is situated within Lyon, IA.

What are the coordinates for 51240?

The approximate center point is 43.30470 (Latitude) and -96.43630 (Longitude).

Is ZIP code 51240 active?

This page lists ZIP 51240 as Listed based on the latest refresh date shown above.

Does ZIP 51240 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