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ZIP Code 83440 Water Quality
Idaho · 40,938 people served · 7 water systems
F
FailingZIP code 83440 is in Idaho and is a small city from a drinking-water-service perspective, with 40,938 people served by 7 EPA-registered public water systems. It corresponds to REXBURG.
Within ZIP code 83440, the EPA Safe Drinking Water Information System (SDWIS) records 164 health-based violations during the past five years across 7 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
ZIP Code Location
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Cities in ZIP 83440
Water Systems Serving 83440
NORTH FORK WATER WORKS
PWSID: ID7220049
64 served
HILLVIEW SUBD
PWSID: ID7330011
50 served
CEDAR BUTTE SUBDIVISION
PWSID: ID7330067
300 served
SHOTGUN CHEROKEE SUBD 5
PWSID: ID7220063
245 served
SHOTGUN NORTH
PWSID: ID7220065
285 served
ASPEN RIDGE SUBD
PWSID: ID7220007
204 served
REXBURG CITY OF
PWSID: ID7330022
39,790 served
About ZIP-code water data
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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