Jefferson County, Wisconsin Water Systems

Jefferson County, Wisconsin

31 community water systems on record — 27 active, 4 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 Wisconsin’s official records. Always confirm current status with Wisconsin before making decisions based on this information.

Community water systems in Jefferson County, Wisconsin

System name	City	Population served	Status
AUTUMN RIDGE WATER SYSTEM LLC	IXONIA	575	Active
BREEZY KNOLL COMMUNITY	CEDAREDGE	116	Active
FORT ATKINSON WATERWORKS	FORT ATKINSON	12,390	Active
HICKORY HILL PARK LLC	SUSSEX	31	Active
JEFFERSON WATERWORKS	JEFFERSON	7,926	Active
JOHNSON CREEK WATERWORKS	JOHNSON CREEK	3,318	Active
LAKE MILLS WATERWORKS	LAKE MILLS	6,211	Active
LAKEWOOD VILLAGE	BAYSIDE	160	Active
OAK RIDGE MOBILE COM 1 & 2	FARMINGTON HILLS	133	Active
OAK RIDGE MOBILE COM 3	FARMINGTON HILLS	58	Active
OAK RIDGE MOBILE COM 4	FARMINGTON HILLS	60	Active
PALMYRA WATERWORKS	PALMYRA	1,756	Active
PARKVIEW APARTMENTS	MILWAUKEE	45	Active
RIPLEY GREENS CONDOMINIUM ASSOC	JEFFERSON	12	Inactive
RIPVIEW COURT 1	CEDAREDGE	35	Active
RIPVIEW COURT 2	CEDAREDGE	31	Active
RIPVIEW COURT 3	CEDAREDGE	31	Active
RIPVIEW COURT 4	CEDAREDGE	35	Active
RIVER VALLEY APTS NORTH	COLUMBUS	48	Active
RIVER VALLEY APTS SOUTH	COLUMBUS	48	Active
ROCK RIVER MOBILE HOME PARK	FORT ATKINSON	30	Active
SPACIOUS ACRES MOBILE HOME COMMUNITY	MENOMONIE FALLS	525	Active
ST COLETTA OF WISCONSIN	JEFFERSON	176	Inactive
ST COLETTA SCHOOL ALVERNO COTTAGES	JEFFERSON	100	Inactive
STANTON PLACE I	IXONIA	66	Active
STANTON PLACE II	IXONIA	32	Active
TREMAIN MOBILE HOME PARK	STEVENS POINT	475	Active
WATERLOO WATERWORKS	WATERLOO	3,520	Active
WATERTOWN WATERWORKS	WATERTOWN	23,945	Active
WELLINGTON MEADOWS	FORT ATKINSON	40	Inactive
WOLFS MOBILE HOMES	WHITEWATER	40	Active