In which county is ZIP code 57551 located?

ZIP 57551 is listed under Bennett, SD.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 57551: Martin, SD

ZIP: 57551

County: Bennett

Coordinates: 43.17220, -101.73410

ZIP Type: Standard

Time Zone: Mountain Time (MT)

Explore detailed information for ZIP code 57551 in Martin, SD. We include verified county details for Bennett plus key geographic references used for mapping and logistics.

Primary City	Martin
ZIP Code	57551
County	Bennett
State	SD
Latitude / Longitude	43.17220, -101.73410
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 57551 (not an exact boundary).

Geographic & Administrative Context

Coordinates for 57551 are listed as 43.17220 / -101.73410, useful for GPS and service checks in and around Martin, SD.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 57551 for mail delivery and general location reference in Bennett, SD.

This ZIP may extend beyond the city core into nearby communities within Bennett.

Related ZIP Codes (Nearby)

Explore other postal codes near Martin within SD.

Frequently Asked Questions

What is the primary city for ZIP code 57551?

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

In which county is 57551 located?

ZIP code 57551 is situated within Bennett, SD.

What are the coordinates for 57551?

The approximate center point is 43.17220 (Latitude) and -101.73410 (Longitude).

Is ZIP code 57551 active?

This page lists ZIP 57551 as Listed based on the latest refresh date shown above.

Does ZIP 57551 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