In which county is ZIP code 51102 located?

ZIP 51102 is listed under Woodbury, IA.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 51102: Sioux City, IA

ZIP: 51102

County: Woodbury

Coordinates: 42.36840, -96.31800

ZIP Type: Standard

Time Zone: Central Time (CT)

This profile provides an in-depth look at ZIP code 51102, serving Sioux City in IA. It lies in Woodbury and supports delivery, planning, and address verification.

Primary City	Sioux City
ZIP Code	51102
County	Woodbury
State	IA
Latitude / Longitude	42.36840, -96.31800
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 51102 (not an exact boundary).

Geographic & Administrative Context

Coordinates for 51102 are listed as 42.36840 / -96.31800, useful for GPS and service checks in and around Sioux City, IA.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 51102 for mail delivery and general location reference in Woodbury, IA.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Sioux City within IA.

Frequently Asked Questions

What is the primary city for ZIP code 51102?

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

In which county is 51102 located?

ZIP code 51102 is situated within Woodbury, IA.

What are the coordinates for 51102?

The approximate center point is 42.36840 (Latitude) and -96.31800 (Longitude).

Is ZIP code 51102 active?

This page lists ZIP 51102 as Listed based on the latest refresh date shown above.

Does ZIP 51102 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