In which county is ZIP code 57223 located?

ZIP 57223 is listed under Hamlin, SD.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 57223: Castlewood, SD

ZIP: 57223

County: Hamlin

Coordinates: 44.73130, -97.02040

ZIP Type: Standard

Time Zone: Central Time (CT)

This profile provides an in-depth look at ZIP code 57223, serving Castlewood in SD. It lies in Hamlin and supports delivery, planning, and address verification.

Primary City	Castlewood
ZIP Code	57223
County	Hamlin
State	SD
Latitude / Longitude	44.73130, -97.02040
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 57223 (not an exact boundary).

Geographic & Administrative Context

Coordinates for 57223 are listed as 44.73130 / -97.02040, useful for GPS and service checks in and around Castlewood, SD.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 57223 for mail delivery and general location reference in Hamlin, SD.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Castlewood within SD.

Frequently Asked Questions

What is the primary city for ZIP code 57223?

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

In which county is 57223 located?

ZIP code 57223 is situated within Hamlin, SD.

What are the coordinates for 57223?

The approximate center point is 44.73130 (Latitude) and -97.02040 (Longitude).

Is ZIP code 57223 active?

This page lists ZIP 57223 as Listed based on the latest refresh date shown above.

Does ZIP 57223 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