Grant County, South Dakota Water Systems

Grant County, South Dakota

10 community water systems on record — 5 active, 5 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 South Dakota’s official records. Always confirm current status with South Dakota before making decisions based on this information.

Community water systems in Grant County, South Dakota

System name	City	Population served	Status
BIG STONE CITY	BIG STONE CITY	412	Active
GRANT-ROBERTS RURAL WATER SYSTEM	MILBANK	5,050	Active
HANSEN MOBILE HOME PARK	MILBANK	30	Inactive
MARVIN	SOUTH SHORE	19	Active
MILBANK	MILBANK	3,200	Active
REVILLO	REVILLO	119	Inactive
RIGGIN TRAILER PARK	MILBANK	60	Inactive
STRANDBURG	STRANDBURG	74	Inactive
SUNRISE COLONY	SUMMIT	94	Active
TWIN BROOKS	TWIN BROOKS	69	Inactive