In which county is ZIP code 57645 located?

ZIP 57645 is listed under Corson, SD.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 57645: Morristown, SD

ZIP: 57645

County: Corson

Coordinates: 45.93860, -101.72320

ZIP Type: Standard

Time Zone: Mountain Time (MT)

This profile provides an in-depth look at ZIP code 57645, serving Morristown in SD. It lies in Corson and supports delivery, planning, and address verification.

Primary City	Morristown
ZIP Code	57645
County	Corson
State	SD
Latitude / Longitude	45.93860, -101.72320
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 57645 (not an exact boundary).

Geographic & Administrative Context

For mapping and verification, 57645 is commonly represented around 45.93860, -101.72320. These coordinates help identify the general area within Corson, SD.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 57645 for mail delivery and general location reference in Corson, SD.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Morristown within SD.

Frequently Asked Questions

What is the primary city for ZIP code 57645?

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

In which county is 57645 located?

ZIP code 57645 is situated within Corson, SD.

What are the coordinates for 57645?

The approximate center point is 45.93860 (Latitude) and -101.72320 (Longitude).

Is ZIP code 57645 active?

This page lists ZIP 57645 as Listed based on the latest refresh date shown above.

Does ZIP 57645 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