In which county is ZIP code 59858 located?

ZIP 59858 is listed under Granite, MT.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 59858: Philipsburg, MT

ZIP: 59858

County: Granite

Coordinates: 46.31890, -113.31260

ZIP Type: Standard

Time Zone: Mountain Time (MT)

Get a reliable snapshot of the Philipsburg, MT postal area 59858. This page summarizes county, coordinates, and local facts to help with services and location research.

Primary City	Philipsburg
ZIP Code	59858
County	Granite
State	MT
Latitude / Longitude	46.31890, -113.31260
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 59858 (not an exact boundary).

Geographic & Administrative Context

Coordinates for 59858 are listed as 46.31890 / -113.31260, useful for GPS and service checks in and around Philipsburg, MT.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 59858 for mail delivery and general location reference in Granite, MT.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Philipsburg within MT.

Frequently Asked Questions

What is the primary city for ZIP code 59858?

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

In which county is 59858 located?

ZIP code 59858 is situated within Granite, MT.

What are the coordinates for 59858?

The approximate center point is 46.31890 (Latitude) and -113.31260 (Longitude).

Is ZIP code 59858 active?

This page lists ZIP 59858 as Listed based on the latest refresh date shown above.

Does ZIP 59858 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