Union County, South Dakota Water Systems

Union County, South Dakota

17 community water systems on record — 9 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 South Dakota’s official records. Always confirm current status with South Dakota before making decisions based on this information.

Community water systems in Union County, South Dakota

System name	City	Population served	Status
ALCESTER	ALCESTER	820	Active
BARNES TRAILER COURT	JEFFERSON	36	Inactive
BERESFORD	BERESFORD	2,359	Active
CLAY RURAL WATER SYSTEM	WAKONDA	4,780	Active
CLAY RWS/SOUTH UNION	WAKONDA	1,447	Active
DAKOTA DUNES CID	DAKOTA DUNES	3,700	Active
DEER RUN ESTATES	JEFFERSON	60	Inactive
ELK POINT	ELK POINT	2,124	Active
HOFFMAN TRAILER COURT	JEFFERSON	120	Inactive
HOFFMAN TRAILER COURT	JEFFERSON	50	Inactive
JEFFERSON	JEFFERSON	475	Active
MCKAY TRAILER COURT	JEFFERSON	25	Inactive
NORTH SIOUX CITY	NORTH SIOUX CITY	3,042	Active
NORTH SIOUX CITY - MCCOOK LAKE SYSTE	MCCOOK LAKE	1,300	Inactive
RIV-R-LAND WATER COMPANY	JEFFERSON	175	Inactive
SANDY MEAD HOUSING DEVELOPMENT	DAKOTA DUNES	70	Inactive
SOUTH LINCOLN RURAL WATER SYSTEM	BERESFORD	5,250	Active