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South Dakota · 72,899 people served · 10 water systems
ZIP code 57701 is in South Dakota and is a mid-sized community from a drinking-water-service perspective, with 72,899 people served by 10 EPA-registered public water systems. It overlaps with 4 communities including PIEDMONT, RAPID CITY, BLACK HAWK, BLACKHAWK.
Within ZIP code 57701, the EPA Safe Drinking Water Information System (SDWIS) records 2 health-based violations during the past five years across 10 water systems serving this postal area. The grade of B reflects the aggregate compliance pattern, not the current daily water quality.
Last updated: 2026-05-18 · Source: EPA SDWIS
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CEDAR GULCH 2
PWSID: SD4602295
40 served
RIMROCK HEIGHTS HOMEOWNERS ASSOCIATI
PWSID: SD4602356
35 served
RAPID CITY
PWSID: SD4600406
72,009 served
ELK VALLEY RANCHETTES
PWSID: SD4602189
62 served
SPEARFISH MEADOWS
PWSID: SD4600875
87 served
WHISPERING WILLOWS
PWSID: SD4602094
64 served
WESTON HEIGHTS HOMEOWNERS ASSOCIATIO
PWSID: SD4600862
412 served
WEST NIKE SUBDIVISION
PWSID: SD4602260
50 served
ELK CREEK VALLEY VIEW ASSOC
PWSID: SD4602363
52 served
AR RANCH
PWSID: SD4602379
88 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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