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South Dakota · 5,585 people served · 23 water systems
ZIP code 57709 is in South Dakota and is a small town from a drinking-water-service perspective, with 5,585 people served by 23 EPA-registered public water systems. It overlaps with 2 communities including RAPID CITY, BLACK HAWK.
Within ZIP code 57709, the EPA Safe Drinking Water Information System (SDWIS) records 9 health-based violations during the past five years across 23 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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SUN VALLEY DEVELOPMENT
PWSID: SD4602270
650 served
B & J MOBILE HOME PARK
PWSID: SD4602122
135 served
PONDEROSA WATER COMPANY
PWSID: SD4602134
25 served
PINEVIEW WATER ASSOCIATION
PWSID: SD4602153
25 served
ELK VALLEY RANCHETTES
PWSID: SD4602189
62 served
PRAIRIE ACRES NORTH
PWSID: SD4600884
288 served
RIMROCK RIDGE WATER ASSOCIATION
PWSID: SD4602084
35 served
PRAIRIE ACRES LLC
PWSID: SD4600014
350 served
STRATO RIM ESTATES WATER COMPANY
PWSID: SD4602191
170 served
GOLDEN HILLS HOMES
PWSID: SD4602213
47 served
MIDLAND HEIGHTS
PWSID: SD4600515
130 served
EDELWEISS MOUNTAIN IMPROVEMENT ASSOC
PWSID: SD4600273
70 served
PONDEROSA MOBILE HOME RANCH
PWSID: SD4600260
150 served
CHAPEL LANE WATER COMPANY
PWSID: SD4600264
1,200 served
CARRIAGE HILLS
PWSID: SD4600265
267 served
EAST RIDGE ACRES
PWSID: SD4601000
118 served
STAGEBARN SANITARY DISTRICT
PWSID: SD4602159
295 served
PRAIRIE ACRES SOUTH
PWSID: SD4600428
170 served
WONDERLAND HOMES
PWSID: SD4600421
750 served
ELK CREEK VILLAGE
PWSID: SD4602237
110 served
DRY CREEK ESTATES
PWSID: SD4602241
233 served
BOULDER PARK WATER USERS ASSOCIATION
PWSID: SD4602005
200 served
PRAIRIE HAVEN SUBDIVISION
PWSID: SD4602322
105 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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