In which county is ZIP code 57038 located?

ZIP 57038 is listed under Union, SD.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 57038: Jefferson, SD

ZIP: 57038

County: Union

Coordinates: 42.60130, -96.57840

ZIP Type: Standard

Time Zone: Central Time (CT)

Get a reliable snapshot of the Jefferson, SD postal area 57038. This page summarizes county, coordinates, and local facts to help with services and location research.

Primary City	Jefferson
ZIP Code	57038
County	Union
State	SD
Latitude / Longitude	42.60130, -96.57840
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 57038 (not an exact boundary).

Geographic & Administrative Context

The geographic center of ZIP code 57038 is approximately 42.60130 (latitude) and -96.57840 (longitude). This location sits within Union, contributing to regional planning across SD.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 57038 for mail delivery and general location reference in Union, SD.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Jefferson within SD.

Frequently Asked Questions

What is the primary city for ZIP code 57038?

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

In which county is 57038 located?

ZIP code 57038 is situated within Union, SD.

What are the coordinates for 57038?

The approximate center point is 42.60130 (Latitude) and -96.57840 (Longitude).

Is ZIP code 57038 active?

This page lists ZIP 57038 as Listed based on the latest refresh date shown above.

Does ZIP 57038 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