In which county is ZIP code 59866 located?

ZIP 59866 is listed under Mineral, MT.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 59866: Saint Regis, MT

ZIP: 59866

County: Mineral

Coordinates: 47.33690, -115.17030

ZIP Type: Standard

Time Zone: Pacific Time (PT)

This profile provides an in-depth look at ZIP code 59866, serving Saint Regis in MT. It lies in Mineral and supports delivery, planning, and address verification.

Primary City	Saint Regis
ZIP Code	59866
County	Mineral
State	MT
Latitude / Longitude	47.33690, -115.17030
ZIP Type	Standard
Time Zone	Pacific Time (PT)
Data Updated	2026-01-08

Maps & Useful Links

Open in Maps: Google Maps · OpenStreetMap

These links show the approximate center point for ZIP 59866 (not an exact boundary).

Geographic & Administrative Context

The geographic center of ZIP code 59866 is approximately 47.33690 (latitude) and -115.17030 (longitude). This location sits within Mineral, contributing to regional planning across MT.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 59866 for mail delivery and general location reference in Mineral, MT.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Saint Regis within MT.

Frequently Asked Questions

What is the primary city for ZIP code 59866?

The primary city for this ZIP code is Saint Regis, located in MT.

In which county is 59866 located?

ZIP code 59866 is situated within Mineral, MT.

What are the coordinates for 59866?

The approximate center point is 47.33690 (Latitude) and -115.17030 (Longitude).

Is ZIP code 59866 active?

This page lists ZIP 59866 as Listed based on the latest refresh date shown above.

Does ZIP 59866 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