Lewis and Clark County, Montana Water Systems

Lewis and Clark County, Montana

93 community water systems on record — 55 active, 38 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 Lewis and Clark County, Montana

System name	City	Population served	Status
ANNIVERSARY TRAILER COURT	HELENA	35	Inactive
ANNIVERSARY TRAILER COURT	HELENA	27	Inactive
APPLEGATE VILLAGE	HELENA	85	Active
BAHNY BRAE SUBDIVISION	EAST HELENA	35	Active
BARNETT WATER USERS SYSTEM	HELENA	70	Active
BARNETT WATER USERS SYSTEM #2	HELENA	50	Inactive
BEACON TRAILER COURT HELENA	HELENA	55	Active
BLUE CLOUD SUBDIVISION	HELENA	60	Active
BRIDGE CREEK ESTATES SUBDIVISION	EAST HELENA	205	Active
BROADWATER ESTATES HOA	EAST HELENA	40	Active
BROADWATER TRAILER COURT	HELENA	50	Inactive
BRYANT NO 3 SUBDIVISION	HELENA	100	Active
BUZZ INN	EAST HELENA	95	Active
CAMEL MOUNTAIN HOA	HELENA	96	Active
CAMEL MTN HOMEOWNERS MOJAVE CT	HELENA	36	Inactive
CAMELOT HOA	HELENA	96	Active
CAMELOT HOA ELDORADO COURT	HELENA	30	Inactive
CLEAR SKY MOBILE HOME PARK	EAST HELENA	25	Inactive
CLOVERLEAF DAIRY (DIST WATER)	HELENA	50	Inactive
CLOVERLEAF DAIRY (DRINK WATER)	HELENA	50	Inactive
DAKOTA VALLEY MOBILE HOME PARK	KODAK	75	Active
DAVIS MEADOW VILLAGE	EAST HELENA	180	Active
DYLL'S TRAILER COURT	LINCOLN	25	Inactive
E AND B TRAILER COURT	HELENA	25	Inactive
EAST HELENA CITY OF	EAST HELENA	2,114	Active
EASTGATE VILLAGE SEWER AND WATER	EAST HELENA	2,000	Active
ELK CREEK COLONY	AUGUSTA	84	Active
EVERGREEN TRAILER CT NORTH	HELENA	50	Inactive
GLACIER POINT HO AND WUA	HELENA	210	Active
GOLDEN ESTATES HOMEOWNERS ASSOCIATION	EAST HELENA	400	Active
GOLDEN ESTATES SOUTH	HELENA	25	Inactive
GOLDEN ESTATES TRAILER COURT	KODAK	225	Active
GRAND VALLEY ESTATES SUBDIVISION	HELENA	50	Active
GRASS LAND ESTATES	EAST HELENA	228	Active
HELENA LEISURE LLC	HELENA	1,200	Active
HELENA NORTH KOA	KALISPELL	50	Active
HELENA RV AND MOBILE HOME PARK	HAILEY	250	Active
HELENA WATER SYSTEM	HELENA	32,091	Active
HERITAGE IGA - E. HELENA	HAVRE	50	Inactive
HOLMBERG VILLAGE ESTATES	HELENA	225	Active
HOMESTEAD VALLEY WUA HVHA	EAST HELENA	105	Active
HUCKLEBERRY TRAILER COURT	LINCOLN	0	Inactive
LA CASA GRANDE WATER AND SEWER DISTRICT	EAST HELENA	404	Active
MASONIC HOME OF MONTANA	EAST HELENA	90	Active
MCDONALD TRAILER CT	EAST HELENA	75	Active
MCHUGH MOBILE HOME PARK	VANCOUVER	490	Active
MEADOWLARK TRAILER COURT #1	HELENA	50	Inactive
MEADOWLARK TRAILER COURT #2	HELENA	50	Inactive
MILFORD COLONY INC	WOLF CREEK	67	Active
MOBILE CITY 3	BILLINGS	40	Active
MOBILE CITY HOME PARK NO 1	BILLINGS	100	Active
MOBILE CITY HOME PARK NO 2	BILLINGS	300	Active
MOONLIGHT ESTATES HOA	HELENA	44	Active
MOUNTAIN HERITAGE WATER SYSTEM	HELENA	175	Active
NORTH FORESTVALE HOMEOWNER ASN	HELENA	50	Inactive
NORTH FORESTVALE HOMEOWNER ASN	HELENA	30	Inactive
NORTH FORESTVALE HOMEOWNERS	HELENA	98	Active
NORTH STAR PUD	HELENA	715	Active
PARK EVERGREEN TRAILER COURT	CORPUS CHRISTI	87	Active
PEBBLE GARDENS MOBILE HOME CT	EAST HELENA	125	Active
PELE PARK	EAST HELENA	186	Active
PHOENIX PARK	EAST HELENA	36	Active
PLEASANT VIEW TRAILER COURT	HELENA	35	Inactive
PRAIRIE MOBILE VILLAGE	HELENA	163	Active
QUARTZ TRAILER COURT	HELENA	75	Inactive
RANCHVIEW ESTATES WUA	HELENA	250	Active
RIVER VIEW MHP UNAPPROVED	HELENA	36	Inactive
ROSE'S BOTTLED WATER	HELENA	30	Inactive
ROSE'S TRAILER CT.	HELENA	30	Inactive
ROSEMARYS ADDITION	HELENA	30	Active
RUGER WATER DISTRICT	EAST HELENA	79	Active
SADDLE MOUNTAIN ESTATES-CLANCY	EAST HELENA	85	Inactive
SILSBEE PARK	HELENA	25	Inactive
SILVER CREEK MOBILE HOME PARK	HELENA	45	Inactive
SKYVIEW WATER AND SEWER UTILITY	EAST HELENA	400	Active
SMITHS TRAILER COURT	LINCOLN	25	Inactive
SOUTH FORESTVALE HOA	HELENA	82	Active
SPRING ST TRAILER COURT	HELENA	65	Inactive
SUN GARDEN MB HM PK HELENA	HELENA	30	Inactive
TEN MILE AND PLEASANT VALLEY WUA	HELENA	750	Active
TEN MILE-PLEANSANT VALLEY WUA	HELENA	170	Inactive
THRIFTWAY NORTH - HELENA	HAVRE	50	Inactive
THRIFTWAY WEST - HELENA	HAVRE	50	Inactive
TOWN VIEW ESTATES WUA INC	HELENA	175	Active
TRAILS END TR PARK HELENA	HELENA	35	Active
TREASURE STATE ACRES WUA	HELENA	483	Active
VA MEDICAL CENTER HELENA	FORT HARRISON	1,275	Active
VETERANS ADMINISTRATION	FORT HARRISON	50	Inactive
WAGON WHEEL COURT	HELENA	25	Inactive
WAGON WHEEL COURT	HELENA	25	Inactive
WESTERN HILLS SUBDIVISION	HELENA	25	Inactive
WESTERN SKIES MOBILE CT	HELENA	25	Active
WHEEL ESTATES HELENA	HELENA	50	Inactive