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Idaho · 14,504 people served · 13 water systems
ZIP code 83221 is in Idaho and is a small city from a drinking-water-service perspective, with 14,504 people served by 13 EPA-registered public water systems. It corresponds to BLACKFOOT.
Within ZIP code 83221, the EPA Safe Drinking Water Information System (SDWIS) records 24 health-based violations during the past five years across 13 water systems serving this postal area. The grade of F reflects the aggregate compliance pattern, not the current daily water quality.
Last updated: 2026-05-18 · Source: EPA SDWIS
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SUNSET TRAILER RANCH
PWSID: ID7100088
150 served
RIVERVIEW ACRES 2
PWSID: ID6060062
29 served
COUNTRY HAVEN UTILITIES
PWSID: ID6060013
150 served
BLACKFOOT CITY OF
PWSID: ID6060007
13,224 served
FOUR SEASONS WATER COMPANY
PWSID: ID6060019
96 served
ROSE GARDEN MOBILE HOME PARK
PWSID: ID6060067
84 served
RIVERVIEW ACRES WATER ASSN 1
PWSID: ID6060063
33 served
SNAKE RIVER VIEW ESTATES
PWSID: ID6060099
175 served
GROVELAND WATER AND SEWER DIST
PWSID: ID6060095
295 served
RIVERSIDE ESTATES
PWSID: ID6060059
90 served
RIVERSTONE SUBDIVISION
PWSID: ID6060121
50 served
IDLE WHEELS MHP CAT LLC
PWSID: ID6060035
85 served
SUNSET SUBD
PWSID: ID6060082
43 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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