In which county is ZIP code 57339 located?

ZIP 57339 is listed under Buffalo, SD.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 57339: Fort Thompson, SD

ZIP: 57339

County: Buffalo

Coordinates: 44.05170, -99.39730

ZIP Type: Standard

Time Zone: Central Time (CT)

This profile provides an in-depth look at ZIP code 57339, serving Fort Thompson in SD. It lies in Buffalo and supports delivery, planning, and address verification.

Primary City	Fort Thompson
ZIP Code	57339
County	Buffalo
State	SD
Latitude / Longitude	44.05170, -99.39730
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 57339 (not an exact boundary).

Geographic & Administrative Context

Coordinates for 57339 are listed as 44.05170 / -99.39730, useful for GPS and service checks in and around Fort Thompson, SD.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 57339 for mail delivery and general location reference in Buffalo, SD.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Fort Thompson within SD.

Frequently Asked Questions

What is the primary city for ZIP code 57339?

The primary city for this ZIP code is Fort Thompson, located in SD.

In which county is 57339 located?

ZIP code 57339 is situated within Buffalo, SD.

What are the coordinates for 57339?

The approximate center point is 44.05170 (Latitude) and -99.39730 (Longitude).

Is ZIP code 57339 active?

This page lists ZIP 57339 as Listed based on the latest refresh date shown above.

Does ZIP 57339 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