In which county is ZIP code 57569 located?

ZIP 57569 is listed under Lyman, SD.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 57569: Reliance, SD

ZIP: 57569

County: Lyman

Coordinates: 43.87890, -99.60320

ZIP Type: Standard

Time Zone: Central Time (CT)

Get a reliable snapshot of the Reliance, SD postal area 57569. This page summarizes county, coordinates, and local facts to help with services and location research.

Primary City	Reliance
ZIP Code	57569
County	Lyman
State	SD
Latitude / Longitude	43.87890, -99.60320
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 57569 (not an exact boundary).

Geographic & Administrative Context

For mapping and verification, 57569 is commonly represented around 43.87890, -99.60320. These coordinates help identify the general area within Lyman, SD.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 57569 for mail delivery and general location reference in Lyman, SD.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Reliance within SD.

Frequently Asked Questions

What is the primary city for ZIP code 57569?

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

In which county is 57569 located?

ZIP code 57569 is situated within Lyman, SD.

What are the coordinates for 57569?

The approximate center point is 43.87890 (Latitude) and -99.60320 (Longitude).

Is ZIP code 57569 active?

This page lists ZIP 57569 as Listed based on the latest refresh date shown above.

Does ZIP 57569 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