In which county is ZIP code 57640 located?

ZIP 57640 is listed under Perkins, SD.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 57640: Lodgepole, SD

ZIP: 57640

County: Perkins

Coordinates: 45.82320, -102.75990

ZIP Type: Standard

Time Zone: Mountain Time (MT)

Get a reliable snapshot of the Lodgepole, SD postal area 57640. This page summarizes county, coordinates, and local facts to help with services and location research.

Primary City	Lodgepole
ZIP Code	57640
County	Perkins
State	SD
Latitude / Longitude	45.82320, -102.75990
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 57640 (not an exact boundary).

Geographic & Administrative Context

For mapping and verification, 57640 is commonly represented around 45.82320, -102.75990. These coordinates help identify the general area within Perkins, SD.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 57640 for mail delivery and general location reference in Perkins, SD.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Lodgepole within SD.

Frequently Asked Questions

What is the primary city for ZIP code 57640?

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

In which county is 57640 located?

ZIP code 57640 is situated within Perkins, SD.

What are the coordinates for 57640?

The approximate center point is 45.82320 (Latitude) and -102.75990 (Longitude).

Is ZIP code 57640 active?

This page lists ZIP 57640 as Listed based on the latest refresh date shown above.

Does ZIP 57640 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