Jefferson County, Montana Water Systems

Jefferson County, Montana

22 community water systems on record — 14 active, 8 inactive.

Every active community water system nationwide must produce a Consumer Confidence Report under the EPA's revised rule, effective for reports due July 1, 2027.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace Montana’s official records. Always confirm current status with Montana before making decisions based on this information.

Community water systems in Jefferson County, Montana

System name	City	Population served	Status
BASIN COUNTY WATER AND SEWER DIST	BASIN	200	Active
BLUE SKY HEIGHTS WUA CLANCY	CLANCY	250	Active
BOMPARTS TRAILER COURT	CLANCY	25	Inactive
BOMPARTS TRAILER COURT	CLANCY	25	Inactive
BOULDER CITY OF	BOULDER	1,400	Active
CLANCY WATER DEPT	CLANCY	230	Inactive
CORBIN WATER USERS ASSN	JEFFERSON CITY	29	Inactive
ELKHORN HEALTH AND REHABILITATION LLC	CLANCY	89	Active
FOREST PARK WATER USERS ASSOCIATION	CLANCY	323	Active
FRANCHI TRAILER COURT	BOULDER	40	Inactive
HANGMANS TREE WUA	CLANCY	158	Active
JEFFERSON HILLS WUA	HELENA	780	Active
JEFFERSON TRACTS ASSOC INC	CLANCY	80	Active
MONTANA DEVELOPMENT CENTER	BOULDER	350	Inactive
MOUNTAIN VIEW TRAILER COURT	CLANCY	40	Inactive
RED CLIFF ESTATES HOA	CLANCY	48	Active
ROCKY MOUNTAIN WUA	CLANCY	30	Active
RODEMS MOBILE HOME CT CLANCY	JEFFERSON CITY	29	Inactive
SADDLE MOUNTAIN CORP CLANCY	CLANCY	350	Active
STONEY BROOK VILLAGE CONDOMINIUM ASSOC	CLANCY	142	Active
SUNNYBROOK ACRES HOA	E HELENA	50	Active
WHITEHALL TOWN OF	WHITEHALL	1,500	Active