In which county is ZIP code 83321 located?

ZIP 83321 is listed under Twin Falls, ID.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 83321: Castleford, ID

ZIP: 83321

County: Twin Falls

Coordinates: 42.52100, -114.87340

ZIP Type: Standard

Time Zone: Mountain Time (MT)

Get a reliable snapshot of the Castleford, ID postal area 83321. This page summarizes county, coordinates, and local facts to help with services and location research.

Primary City	Castleford
ZIP Code	83321
County	Twin Falls
State	ID
Latitude / Longitude	42.52100, -114.87340
ZIP Type	Standard
Time Zone	Mountain Time (MT)
Data Updated	2026-01-08

Maps & Useful Links

Open in Maps: Google Maps · OpenStreetMap

These links show the approximate center point for ZIP 83321 (not an exact boundary).

Geographic & Administrative Context

Coordinates for 83321 are listed as 42.52100 / -114.87340, useful for GPS and service checks in and around Castleford, ID.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 83321 for mail delivery and general location reference in Twin Falls, ID.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Castleford within ID.

Frequently Asked Questions

What is the primary city for ZIP code 83321?

The primary city for this ZIP code is Castleford, located in ID.

In which county is 83321 located?

ZIP code 83321 is situated within Twin Falls, ID.

What are the coordinates for 83321?

The approximate center point is 42.52100 (Latitude) and -114.87340 (Longitude).

Is ZIP code 83321 active?

This page lists ZIP 83321 as Listed based on the latest refresh date shown above.

Does ZIP 83321 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