Montana utilities 301 to 400.

Each serves 114 to 180 people, as it reports to EPA. Your ZIP code finds yours faster.

Find a Montana utility, city or county

301 to 400 of 754, by people served

Montana utilities, 301 to 400 of 754, by people served
Utility	Based in	Serves	Regulated PFAS	Health-based violations since 2016
Town of Richey	Richey	180	Not sampled	0
Town of Saco	Saco	180	Not sampled	0
Cinnabar the	Corwin Springs	175	Not sampled	0
Elk Meadows Ranchettes	Frenchtown	175	Not sampled	2
Kootenai Creek Village	Stevensville	175	Not sampled	0
Mobile City Trailer Court	Missoula	175	Not sampled	0
Mountain Heritage Water System	East Helena	175	Not sampled	0
Town View Estates WUA Inc	Helena	175	Not sampled	0
Town of Westby	Westby	172	Not sampled	0
Town of Melstone	Melstone	170	Not sampled	0
Phillips County Zortman Water and Sewer	Zortman	169	Not sampled	0
Hawthorn Springs Property Owners Assoc	Missoula	165	Not sampled	0
Fox Hill Estates	Kalispell	163	Not sampled	0
Greenland Mobile Home Park	Missoula	163	Not sampled	0
Prairie Mobile Village	Helena	163	Not sampled	0
Spring Meadows County Water District	Missoula	162	Not sampled	1
Emkayan Village Co Water and Sewer Dist	Libby	160	Not sampled	0
New Rockport Colony Inc	Choteau	160	Not sampled	0
Pinewood Village	Libby	160	Not sampled	1
Sunhaven Mobile Home Park	Laurel	160	Not sampled	0
Town of Rexford	Rexford	160	Not sampled	0
Hangmans Tree WUA	Clancy	158	Not sampled	0
Churchill North Subdivision	Manhattan	155	Not sampled	0
Angel Island Subdivision	Troy	150	Not sampled	0
Carter Chouteau Co Water Dist	Carter	150	Not sampled	1
Cobblestone Subdivision	Bozeman	150	Not sampled	0
Glendale Colony	Cut Bank	150	Not sampled	0
Horizon Colony	Santa Rita	150	Not sampled	0
Lambert Sewer and Water Assn	Lambert	150	Not sampled	0
Martinsdale Colony	Martinsdale	150	Not sampled	0
Meadowland HOA	Kalispell	150	Not sampled	0
Mountain View Mb Hm Pk	Townsend	150	Not sampled	0
Saddleback Ridge Estates	Billings	150	Not sampled	0
Shyrock Motorcoach Community	Superior	150	Not sampled	0
Springvale Subdivision	Belgrade	150	Not sampled	0
Stock Farm the	Hamilton	150	Not sampled	0
Youth With A Mission	Lakeside	150	Not sampled	0
Quail Ridge	Kalispell	148	Not sampled	0
C & C Community Inc	Billings	145	Not sampled	0
Shelby Addition Water District	Lolo	145	Not sampled	0
Brady County Water Sewer District	Brady	144	Not sampled	0
Ncmrwa Pondera Co Service Area	Conrad	144	Not sampled	0
Stoney Brook Village Condominium Assoc	Clancy	142	Not sampled	0
C and D HOA	Missoula	140	Not sampled	0
Magnolia Estates	Missoula	140	Not sampled	0
Old Hellgate Village Msla	Missoula	140	Not sampled	0
Rocky Cliff Estates	Kalispell	140	Not sampled	0
Corvallis Mobile Village	Corvallis	138	Not sampled	0
Two Rivers Mobile Hm Pk Lolo	Missoula	138	Not sampled	0
Avalon Subdivision	Emigrant	135	Not sampled	0
Northwoods Water System Coop Inc	Whitefish	135	Not sampled	0
Sunny Meadows Water and Sewer Dist	Missoula	135	Not sampled	1
Sunrise Terrace Subd No 2	Kalispell	131	Not sampled	0
Big Stone Colony Inc	Sand Coulee	130	Not sampled	0
Bitterroot Gateway Mb Pk Lolo	Lolo	130	Not sampled	0
Forest Inn Lounge and Apartments	Missoula	130	Not sampled	0
Meadow Hills Water and Sewer District	Kalispell	130	Not sampled	0
New Miami Colony	Conrad	130	Not sampled	0
Riverview Colony	Chester	130	Not sampled	16
Sage Creek Colony	Chester	130	Not sampled	0
Stillwater Estates County W and S Dist	Kalispell	130	Not sampled	0
Town of Plevna	Plevna	130	Not sampled	0
West Valley Pines HOA Inc	Kalispell	130	Not sampled	0
Bonner Housing PWS System	Bonner	128	Not sampled	0
Hildreth Subdivision No 3	Dillon	128	Not sampled	1
Two Mile Tract HOA	Kalispell	128	Not sampled	0
Town of Judith Gap	Judith Gap	126	Not sampled	0
Alpine Village WUA	Whitefish	125	PFOS	0
Country Estates Mble Home Park	Columbia Falls	125	Not sampled	0
Eagle Creek Colony	Chester	125	Not sampled	0
Geyser Judith Basin Cty Water Sewer Dist	Geyser	125	Not sampled	0
Golden Eagle Water Users Assn	Billings	125	Not sampled	1
Pebble Gardens Mobile Home CT	Helena	125	Not sampled	0
Pleasant Park Community Inc	Great Falls	125	Not sampled	0
Town of Hobson	Hobson	125	Not sampled	0
West Mountain Estates	Alberton	125	Not sampled	0
Windmill Trailer Park Well 2	Livingston	125	Not sampled	0
Yellowtail Dam Gc System	Hardin	125	Not sampled	0
Rimrock Colony	Sunburst	124	Not sampled	0
Daly Estates Subdivision	Hamilton	123	Not sampled	0
The Benches	Whitefish	123	Not sampled	0
Lazy J South Subdivision	Bozeman	122	Not sampled	0
Birch Creek Colony	Valier	120	Not sampled	0
Bitterroot Meadows HOA Lolo	Missoula	120	Not sampled	0
Holbrook Estates	Kalispell	120	Not sampled	0
Kingsbury Colony	Valier	120	Not sampled	1
Meadow Brook Park	Frenchtown	120	Not sampled	0
Pleasant Valley Colony	Belt	120	Not sampled	0
Town of Dodson	Dodson	120	Not sampled	3
Wild Flower HOA the	Hamilton	120	Not sampled	0
Wettington Water District Inc	Kalispell	119	Not sampled	1
Mission Mountain Lake Co W and S Dist	Ronan	118	Not sampled	0
Northwest Indian Bible School	Alberton	118	Not sampled	0
Seville Colony	Cut Bank	116	Not sampled	0
Centennial Homeowner'S Association, Inc	Corvallis	115	Not sampled	0
Eagle Ridge Estates Co W and S Dist	Kalispell	115	Not sampled	0
Riverwalk and Dinos Estates	Missoula	115	Not sampled	0
Valley West Trailer Court	Lolo	115	Not sampled	0
Woodside Park County Water and Sewer Dis	Thompson Falls	115	Not sampled	1
Mountain View Colony	Broadview	114	Not sampled	0

Every utility EPA sampled for PFAS under UCMR 5, any other community system serving 3,300 people or more, and any smaller one with results from 2020 on, from the state. Other systems appear in ZIP code results. People served is what each utility reports to EPA. Data: EPA SDWIS 2026 Q3, UCMR 5 and EPA’s 2012 to 2019 compliance results, and Montana Department of Environmental Quality, Public Water Supply.

301 to 400 of 754, by people served

Where to go next