In which county is ZIP code 51023 located?

ZIP 51023 is listed under Sioux, IA.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 51023: Hawarden, IA

ZIP: 51023

County: Sioux

Coordinates: 43.00130, -96.47300

ZIP Type: Standard

Time Zone: Central Time (CT)

Get a reliable snapshot of the Hawarden, IA postal area 51023. This page summarizes county, coordinates, and local facts to help with services and location research.

Primary City	Hawarden
ZIP Code	51023
County	Sioux
State	IA
Latitude / Longitude	43.00130, -96.47300
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 51023 (not an exact boundary).

Geographic & Administrative Context

The geographic center of ZIP code 51023 is approximately 43.00130 (latitude) and -96.47300 (longitude). This location sits within Sioux, contributing to regional planning across IA.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 51023 for mail delivery and general location reference in Sioux, IA.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Hawarden within IA.

Frequently Asked Questions

What is the primary city for ZIP code 51023?

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

In which county is 51023 located?

ZIP code 51023 is situated within Sioux, IA.

What are the coordinates for 51023?

The approximate center point is 43.00130 (Latitude) and -96.47300 (Longitude).

Is ZIP code 51023 active?

This page lists ZIP 51023 as Listed based on the latest refresh date shown above.

Does ZIP 51023 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