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South Dakota · 14,435 people served · 26 water systems
ZIP code 57783 is in South Dakota and is a small city from a drinking-water-service perspective, with 14,435 people served by 26 EPA-registered public water systems. It overlaps with 4 communities including SPEARFISH, BLACK HAWK, RAPID CITY, PIEDMONT.
Within ZIP code 57783, the EPA Safe Drinking Water Information System (SDWIS) records 9 health-based violations during the past five years across 26 water systems serving this postal area. The grade of D reflects the aggregate compliance pattern, not the current daily water quality.
Last updated: 2026-05-18 · Source: EPA SDWIS
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SPEARFISH VALLEY MOBILE ESTATES
PWSID: SD4600625
163 served
WILD TURKEY ESTATES II
PWSID: SD4602282
70 served
SPEARFISH MEADOWS
PWSID: SD4600875
87 served
WESTVIEW HOMEOWNERS ASSOCIATION
PWSID: SD4600876
103 served
DEBERG WELL USERS ASSOCIATION
PWSID: SD4602095
54 served
D & E WATER COMPANY
PWSID: SD4600392
100 served
MEADOW CREST SANITARY DISTRICT
PWSID: SD4602258
63 served
WILD TURKEY ESTATES I
PWSID: SD4602281
33 served
MOUNTAIN PLAINS 2 HOMEOWNERS ASSOC
PWSID: SD4602169
268 served
CENTENNIAL HILLS HOME ASSOCIATION
PWSID: SD4602176
25 served
RIVERSIDE MOBILE HOME COURT
PWSID: SD4600508
75 served
SUNRISE HOMEOWNERS ASSOCIATION
PWSID: SD4600512
50 served
LOURIE LANE HOMEOWNERS ASSOC
PWSID: SD4600416
75 served
BICENTENNIAL TRAILER COURT
PWSID: SD4600426
23 served
REYNOLDS COURT
PWSID: SD4600160
28 served
SAINT ONGE SEWER & WATER CO
PWSID: SD4600287
255 served
SPEARFISH
PWSID: SD4600311
12,193 served
KEN'S TRAILER COURT
PWSID: SD4600314
110 served
LANTERN ESTATES
PWSID: SD4600315
192 served
WALNUT PARK
PWSID: SD4600316
180 served
WESTFIELD ADDITION
PWSID: SD4600521
104 served
VALLEY VIEW WATER ASSOCIATION
PWSID: SD4602343
42 served
SPRING CREEK PRESERVE
PWSID: SD4602331
35 served
THE TIMBERS
PWSID: SD4602376
33 served
CENTENNIAL VISTA ESTATES
PWSID: SD4602280
44 served
TWO BIT RANCH ESTATES
PWSID: SD4602319
30 served
Postal-code level water quality data is built up from the underlying water systems — multiple ZIPs may share a single utility, and a single ZIP can span multiple utilities. For property-level information, contact the specific utility serving your address. EPA data on this page was last refreshed on 2026-05-18.
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