Pennington County, South Dakota Water Systems

Pennington County, South Dakota

92 community water systems on record — 67 active, 25 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 Pennington County, South Dakota

System name	City	Population served	Status
B & B TRAILER COURT	KEYSTONE	50	Inactive
B & J MOBILE HOME PARK	RAPID CITY	135	Active
BOX ELDER	BOX ELDER	14,000	Active
BOXELDER HIGH COUNTRY ASSOCIATION	RAPID CITY	45	Active
BRIDLE RIDGE ESTATES	PIEDMONT	38	Active
CANYON SPRINGS WATER AND SEWER DISTR	BLACK HAWK	163	Active
CAPPS TRAILER COURT	RAPID CITY	26	Inactive
CARRIAGE HILLS	RAPID CITY	267	Active
CAVALRY TRAILS HOMEOWNER ASSOCIATION	PIEDMONT	44	Active
CEDAR GULCH 1	RAPID CITY	45	Active
CEDAR GULCH 2	PIEDMONT	40	Active
CHAPEL LANE WATER COMPANY	RAPID CITY	1,200	Active
CLEGHORN SPRINGS	RAPID CITY	150	Inactive
COLONIAL PINE HILLS SANITARY DISTRIC	RAPID CITY	1,200	Active
COPPER OAKS I	NEW UNDERWOOD	64	Active
COTTONWOOD GROVE MOBILE HOME PARK	RAPID CITY	30	Inactive
COUNTRY ROAD ESTATES	BLACK HAWK	112	Active
COUNTRYSIDE	RAPID CITY	492	Inactive
CPH - COUNTRYSIDE SOUTH	RAPID CITY	576	Inactive
DARLINGTON ESTATES	RAPID CITY	25	Active
EDELWEISS MOUNTAIN IMPROVEMENT ASSOC	BLACK HAWK	70	Active
ELLSWORTH AFB	ELLSWORTH AFB	9,100	Active
ENCHANTED HILLS WATER ASSOCIATION	RAPID CITY	175	Inactive
FARMER SUPPLY COMPANY	RAPID CITY	100	Inactive
GOLDEN HILLS HOMES	RAPID CITY	47	Active
HAPPY HOLIDAY RV RESORT	RAPID CITY	264	Active
HAPPY HOLIDAY WATER ASSOCIATION	RAPID CITY	35	Active
HART RANCH	RAPID CITY	438	Active
HIDDEN VALLEY WATER ASSOCIATION INC	RAPID CITY	27	Active
HIGH MEADOWS RANCHETTES	BLACK HAWK	60	Active
HIGH SHERIDAN RANCH	BLACK HAWK	38	Active
HIGHLAND HILLS	RAPID CITY	38	Active
HILL CITY	HILL CITY	872	Active
HISEGA MEADOWS WATER INC	RAPID CITY	491	Active
KEYSTONE	KEYSTONE	349	Active
LAKESIDE WATER USERS DISTRICT	OWANKA	51	Active
LAUREL HEIGHTS	RAPID CITY	40	Inactive
LEO'S TRAILER COURT	RAPID CITY	27	Inactive
LIGHTNING RIDGE	RAPID CITY	24	Inactive
MESA VIEW WATER ASSOCIATION	SUMMERSET	100	Inactive
NEW UNDERWOOD	NEW UNDERWOOD	679	Active
NORRIS PEAK WATER USERS ASSOC	BLACK HAWK	30	Active
NORTHDALE SANITARY DISTRICT	PIEDMONT	1,075	Active
OAKS WATER USERS ASSOCIATION	NEW UNDERWOOD	180	Active
OWANKA RURAL WATER SYSTEM	BLACK HAWK	52	Active
PINE CLIFF ESTATES	BLACK HAWK	180	Active
PINE GROVE	RAPID CITY	425	Active
PINEVIEW WATER ASSOCIATION	RAPID CITY	25	Active
PLAINSVIEW MOBILE MANOR	BLACK HAWK	300	Inactive
PONDEROSA MOBILE HOME RANCH	RAPID CITY	150	Active
PONDEROSA PARK	RAPID CITY	31	Active
PONDEROSA RIDGE	RAPID CITY	90	Active
PONDEROSA WATER COMPANY	RAPID CITY	25	Active
PRAIRIE ACRES LLC	RAPID CITY	350	Active
PRAIRIE ACRES NORTH	RAPID CITY	288	Active
PRAIRIE ACRES SOUTH	RAPID CITY	170	Active
PRAIRIE HAVEN SUBDIVISION	BLACK HAWK	105	Active
QUINN	QUINN	100	Inactive
RAINBOW WATER COMPANY	PIEDMONT	258	Inactive
RAPID CITY	RAPID CITY	72,009	Active
RAPID CITY MOBILE HOME PARK	BLACK HAWK	170	Active
RAPID VALLEY SANITARY DISTRICT	RAPID CITY	11,408	Active
REYNOLDS COURT	SPEARFISH	28	Active
RIMROCK HEIGHTS HOMEOWNERS ASSOCIATI	RAPID CITY	35	Active
RIMROCK RIDGE WATER ASSOCIATION	RAPID CITY	35	Active
RUSHMORE RANCH ESTATES	BLACK HAWK	168	Active
SCENIC, TOWN OF	SCENIC	35	Inactive
SHERIDAN LAKE HIGHLANDS, INC.	PIEDMONT	85	Active
SIPHON HILL WATER ASSOCIATION	RAPID CITY	68	Active
SOUTH CANYON COUNTRY ESTATES	RAPID CITY	420	Active
SPRING CANYON WATER COMPANY	PIEDMONT	89	Active
SPRINGBROOK ACRES	RAPID CITY	425	Inactive
STRATO RIM ESTATES WATER COMPANY	RAPID CITY	170	Active
SUNNYSIDE MOBILE HOME COURT	RAPID CITY	50	Inactive
SUNNYSIDE MOBILE HOME PARK II	PIEDMONT	235	Active
SUNSET RANCH	PIEDMONT	263	Active
TERRA COTTA ESTATES	PIEDMONT	75	Inactive
THE RANCH AT BLACK GAP	RAPID CITY	375	Active
THRALL MTN. PROPERTY OWNERS ASSOCIAT	BLACK HAWK	70	Active
VALLEY HEIGHTS ESTATES INC	STURGIS	320	Active
VISTA HILLS	RAPID CITY	30	Inactive
WAGON WHEEL MOBILE HOME PARK	RAPID CITY	90	Inactive
WALL	WALL	699	Active
WARREN WTR CO INC, WARREN REUB	RAPID CITY	100	Inactive
WASTA	WASTA	84	Active
WEST RIVER - LYMAN JONES RWS	MURDO	48	Inactive
WESTBERRY TRAILS WATER USERS ASSOC	PIEDMONT	155	Active
WESTVIEW WATER C/O WW LAGE	RAPID CITY	40	Inactive
WHISPERING PINES WATER ASSOCIATION	RAPID CITY	48	Active
WHISPERING WILLOWS	BLACK HAWK	64	Active
WILDWOOD WATER ASSOCIATION	RAPID CITY	80	Inactive
WR/LJ - CREIGHTON PROJECT	PHILIP	1,170	Active