County · Idaho
Canyon County, Idaho: drinking water records
This overview covers 10 ZIP codes and 82 community water systems in Canyon County. It also stands in for 0 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 |
|---|---|---|---|---|---|
| Nampa City of ID3140080 | 100,200 | 780 | 0 | 0 | 2 ppb |
| Caldwell City of ID3140013 | 74,000 | 887 | 0 | 0 | 0 ppb |
| Middleton City of ID3140074 | 13,190 | 420 | 0 | 0 | 2 ppb |
| Lansing Meadows ID3140231 | 320 | 0 | 0 | 1 | 7 ppb |
| Evergreen Mobile Park ID3140035 | 284 | 0 | 0 | 2 | 0 ppb |
| Indian Village ID3140193 | 225 | 0 | 0 | 11 | 5 ppb |
| Drake Subd ID3140028 | 150 | 0 | 0 | 24 | 0 ppb |
| Sky Ranch Estates ID3140221 | 104 | 0 | 0 | 1 | 0 ppb |
| Karcher Acres Subd ID3140048 | 100 | 0 | 0 | 1 | 4 ppb |
| M & T Water Corp ID3140097 | 100 | 0 | 0 | 1 | 0 ppb |
| Pleasant View Manor ID3140079 | 100 | 0 | 0 | 1 | 0 ppb |
| Idaho Youth Ranch Hands of Promise ID3140274 | 95 | 0 | 0 | 7 | 0 ppb |
| Maverick Subd Lasher Construction ID3140069 | 90 | 0 | 0 | 2 | 0 ppb |
| Westview Shervik Subd ID3140137 | 78 | 0 | 0 | 1 | 0 ppb |
| Rich Subd ID3140096 | 60 | 0 | 0 | 1 | 1 ppb |
| Valley View Water ID3140130 | 57 | 0 | 0 | 2 | 0.6 ppb |
| Christis Mobile Park ID3140142 | 50 | 0 | 0 | 1 | 0 ppb |
| Northstar Subdivision ID3140278 | 50 | 0 | 0 | 4 | 3 ppb |
| Vanal Heights Well Assn ID3140133 | 48 | 0 | 0 | 7 | 0 ppb |
| Locust Subd ID3140066 | 42 | 0 | 0 | 2 | 0 ppb |
| Shipman Place Subd ID3140109 | 40 | 0 | 0 | 1 | 0 ppb |
| Sunnyridge I Subd ID3140119 | 35 | 0 | 0 | 4 | 3 ppb |
| Parma City of ID3140089 | 2,250 | 0 | 0 | 0 | 1 ppb |
| Wilder City of ID3140138 | 1,690 | 0 | 0 | 0 | 5 ppb |
| Caldwell Housing Authority ID3140012 | 1,100 | 0 | 0 | 0 | 9 ppb |
ZIP reports in Canyon County
No ZIP report in this county is published yet.
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.