In which county is ZIP code 57231 located?

ZIP 57231 is listed under Kingsbury, SD.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 57231: De Smet, SD

ZIP: 57231

County: Kingsbury

Coordinates: 44.38520, -97.56340

ZIP Type: Standard

Time Zone: Central Time (CT)

Get a reliable snapshot of the De Smet, SD postal area 57231. This page summarizes county, coordinates, and local facts to help with services and location research.

Primary City	De Smet
ZIP Code	57231
County	Kingsbury
State	SD
Latitude / Longitude	44.38520, -97.56340
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 57231 (not an exact boundary).

Geographic & Administrative Context

Coordinates for 57231 are listed as 44.38520 / -97.56340, useful for GPS and service checks in and around De Smet, SD.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 57231 for mail delivery and general location reference in Kingsbury, SD.

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

Related ZIP Codes (Nearby)

Explore other postal codes near De Smet within SD.

Frequently Asked Questions

What is the primary city for ZIP code 57231?

The primary city for this ZIP code is De Smet, located in SD.

In which county is 57231 located?

ZIP code 57231 is situated within Kingsbury, SD.

What are the coordinates for 57231?

The approximate center point is 44.38520 (Latitude) and -97.56340 (Longitude).

Is ZIP code 57231 active?

This page lists ZIP 57231 as Listed based on the latest refresh date shown above.

Does ZIP 57231 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