In which county is ZIP code 51234 located?

ZIP 51234 is listed under Sioux, IA.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 51234: Boyden, IA

ZIP: 51234

County: Sioux

Coordinates: 43.20340, -95.98230

ZIP Type: Standard

Time Zone: Central Time (CT)

Get a reliable snapshot of the Boyden, IA postal area 51234. This page summarizes county, coordinates, and local facts to help with services and location research.

Primary City	Boyden
ZIP Code	51234
County	Sioux
State	IA
Latitude / Longitude	43.20340, -95.98230
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 51234 (not an exact boundary).

Geographic & Administrative Context

For mapping and verification, 51234 is commonly represented around 43.20340, -95.98230. These coordinates help identify the general area within Sioux, IA.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 51234 for mail delivery and general location reference in Sioux, IA.

This ZIP may extend beyond the city core into nearby communities within Sioux.

Related ZIP Codes (Nearby)

Explore other postal codes near Boyden within IA.

Frequently Asked Questions

What is the primary city for ZIP code 51234?

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

In which county is 51234 located?

ZIP code 51234 is situated within Sioux, IA.

What are the coordinates for 51234?

The approximate center point is 43.20340 (Latitude) and -95.98230 (Longitude).

Is ZIP code 51234 active?

This page lists ZIP 51234 as Listed based on the latest refresh date shown above.

Does ZIP 51234 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