County · Idaho
Elmore County, Idaho: drinking water records
This overview covers 6 ZIP codes and 25 community water systems in Elmore County. It also stands in for 1 ZIP codes whose utility has too little EPA data for a page of its own.
System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.
Water systems with the most complete records
| Water system | People served | PFAS survey results | PFAS found | Health-based violations | Lead, 9 in 10 homes at or below |
|---|---|---|---|---|---|
| Mountain Home, City of ID4200032 | 14,651 | 540 | 0 | 3 | 0 ppb |
| Mountain Home Air Force Base ID4200054 | 7,500 | 180 | 4 | 14 | 0 ppb |
| Trinity Estates Water Users Assn ID4200053 | 250 | 0 | 0 | 1 | 7 ppb |
| Canyon Creek Mobile Home Park ID4200010 | 243 | 0 | 0 | 3 | 3 ppb |
| Simplot Livestock Company Grandview ID4200046 | 100 | 0 | 0 | 1 | 3 ppb |
| King Hill Domestic Water and Sewer ID4200026 | 87 | 0 | 0 | 14 | 1 ppb |
| Town and Country Water Users Assn ID4200052 | 86 | 0 | 0 | 1 | 3 ppb |
| New Horizons Water INC ID4200033 | 85 | 0 | 0 | 1 | 1 ppb |
| Pleasant Acres Mobile Home Park ID4200001 | 85 | 0 | 0 | 2 | 3 ppb |
| Skyview Mobile Home Park IN5220021 | 84 | 0 | 0 | 1 | 0.3 ppb |
| Oakleaf Subdivision ID4200096 | 71 | 0 | 0 | 1 | 0 ppb |
| Mountain Sage ID4200073 | 65 | 0 | 0 | 2 | 3 ppb |
| Hammett Haven Apartments ID4200023 | 64 | 0 | 0 | 9 | 5 ppb |
| Silver Sage Real Property Owners Assn ID4200045 | 30 | 0 | 0 | 8 | 1 ppb |
| Glenns Ferry City of ID4200022 | 1,282 | 0 | 0 | 0 | 0 ppb |
| Mellen Subd Water Dist ID4200089 | 250 | 0 | 0 | 0 | 5 ppb |
| Summerwind Water Users ID4200049 | 192 | 0 | 0 | 0 | 0 ppb |
| Sawtooth Estates Water Users ID4200043 | 175 | 0 | 0 | 0 | 0 ppb |
| Blue Sage Subdivision ID4200108 | 112 | 0 | 0 | 0 | 0 ppb |
| Hamilton Place ID4200037 | 97 | 0 | 0 | 0 | 0 ppb |
| Atlanta Water Assn ID4200005 | 91 | 0 | 0 | 0 | 1 ppb |
| Splendid Acres Water Assn ID4200048 | 91 | 0 | 0 | 0 | 0 ppb |
| Danskin Properties Association INC ID4200091 | 52 | 0 | 0 | 0 | 1 ppb |
| Camas Estates Water Users ID4200009 | 50 | 0 | 0 | 0 | 0 ppb |
| Featherville Townsite Water Corp ID4200020 | 60 | 0 | 0 | 0 | not reported |
ZIP reports in Elmore County
No ZIP report in this county is published yet.
These ZIP codes are covered by this overview because their utility has too little EPA data for a separate page: 83337.
Sources and scope
EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Page generated 2026-09-03.
Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.