Big Sky County Water & Sewer District No. 363
The Big Sky County Water & Sewer District is a special purpose unit of government organized to regulate and operate the water and sewer systems at Big Sky, Montana. Created in 1993, the District is governed by a 7 member Board of Directors. Board meetings are held monthly at the District office generally on the 3rd Tuesday of each month. The public is welcome. Contact the District office for the next scheduled meeting. 


Our office will be fully open to the public beginning Tuesday, June 1st. Our community meeting room will also be available for meetings. All meetings must be scheduled through the District office by calling 406-995-2660.

If you have a payment please continue to use our drop box in front.

Thank you for your cooperation and patience during our health crisis.

Meetings & Announcements

Special District Board Meeting

Tuesday, October 19, 2021 @ 8:00 AM

These will be online “Zoom  Meetings”.  The public can join the meeting using the following links:

One tap mobile

+13462487799,,4069952660# US (Houston)
+16699009128,,4069952660# US (San Jose)

Dial by your location
+1 346 248 7799 US (Houston)
+1 669 900 9128 US (San Jose)
+1 253 215 8782 US (Tacoma)
+1 312 626 6799 US (Chicago)
+1 646 558 8656 US (New York)
+1 301 715 8592 US (Germantown)
Meeting ID: 406 995 2660

Utility Bill Pay Information

Level Two
Effective July 1, 20021

EVEN CALENDAR DAYS OF THE MONTH – Even numbered homes, even numbered commercial properties, and all condominium and town home complexes South of Highway 64.

ODD CALENDAR DAYS OF THE MONTH – Odd numbered homes, odd numbered commercial properties and all condominium and town home complexes North of Highway 64.

IRRIGATION HOURS – Limited to 6:00 AM to 8:00 AM and from 9:00 PM to 11:00 PM.

OTHER RESTRICTIONS  – Unattended open hose watering is not allowed, all watering must flow through a sprinkler.

District Office

Big Sky County Water & Sewer District No. 363
561 Little Coyote Road
PO Box 160670
Big Sky, MT  59716

Gallatin Canyon Wastewater Upgrade Study Informational Meeting @ Bucks T4 - March 5, 2020

Wastewater Reclamation Upgrade Project appended recording covering Tech Memos 11-15 @ WSD363 Conference Room - January 15, 2019

Big Sky Wastewater Treatment Plant Upgrade Project General Overview

Wastewater Treatment Plant Public Informational Meeting @ WSD363 Conference Room - November 27,  2018 

Big Sky Resort Tax Meeting @ BSRAD Office - December 12, 2018

How the Wastewater System Works