We found 46 public water systems that could serve the same population as Cougar Ridge Water & Sewer (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Lewiston Orchards Irrigation Dist | Lewiston | 20,000 | 12 | 3 |
| Lewiston City Of | Lewiston | 14,500 | 49 | 2 |
| Clearwater Paper Corporation | County of Nez Perce | 1,550 | 0 | 1 |
| Lapwai City Of | County of Nez Perce | 1,137 | 0 | 20 |
| Federal Cartridge Company | County of Nez Perce | 924 | 0 | 4 |
| Clearwater River Casino | County of Nez Perce | 500 | 0 | 0 |
| Culdesac City Of | County of Nez Perce | 400 | 0 | 13 |
| Red Pheasant Water Company Llc | County of Nez Perce | 370 | 0 | 34 |
| Peck Water System | County of Nez Perce | 210 | 0 | 79 |
| Eagles Pointe Subdivision | County of Nez Perce | 110 | 0 | 0 |
| Medley Water System | County of Nez Perce | 100 | 0 | 0 |
| Waha Glen Water Dist | County of Nez Perce | 100 | 0 | 0 |
| Eaton Mobile Home Court | County of Nez Perce | 94 | 0 | 0 |
| Myrtle Beach Resort | County of Nez Perce | 90 | 0 | 0 |
| Lenore Rest Stop Itd | County of Nez Perce | 80 | 0 | 0 |
| Tammany Alternative Center | County of Nez Perce | 80 | 0 | 0 |
| Cooks Paradise Acres | County of Nez Perce | 80 | 0 | 0 |
| Canyon Inn | County of Nez Perce | 80 | 0 | 0 |
| Atlas Sand And Rock Inc | Lewiston | 63 | 0 | 0 |
| Scibek Bottled Water | County of Nez Perce | 60 | 0 | 0 |
| Red Rock Incorporated | County of Nez Perce | 60 | 0 | 0 |
| View Point Subdivision | County of Nez Perce | 56 | 0 | 0 |
| Lenore Community Center | County of Nez Perce | 50 | 0 | 0 |
| Lewiston Roundup | County of Nez Perce | 50 | 0 | 0 |
| Western States Equipment | County of Nez Perce | 50 | 0 | 0 |
| Schwabs Inc | County of Nez Perce | 41 | 0 | 0 |
| Mrytle Beach Resort | Lewiston | 35 | 0 | 0 |
| Nick Smith | County of Nez Perce | 30 | 0 | 0 |
| Tom Arnold | County of Nez Perce | 30 | 0 | 0 |
| Lewis Clark Dairy | County of Nez Perce | 30 | 0 | 0 |
| Thunderbird Smoke Shop | County of Nez Perce | 30 | 0 | 0 |
| Craig Mountain Resort | County of Nez Perce | 25 | 0 | 0 |
| Hatwai | County of Nez Perce | 25 | 0 | 0 |
| Howards Gun Club Road | County of Nez Perce | 25 | 0 | 0 |
| Nps Nez Perce National Historical Park | County of Nez Perce | 25 | 0 | 0 |
| Tammany View Baptist Church | County of Nez Perce | 25 | 0 | 0 |
| Blm Mckays Bend Recreation Site | County of Nez Perce | 25 | 0 | 0 |
| Drovers Run At Jacques Spur | County of Nez Perce | 25 | 0 | 0 |
| Usps Nez Perce Historical Park Kamiah | County of Nez Perce | 25 | 0 | 0 |
| Lewiston Hill Port Of Entry Itd | County of Nez Perce | 25 | 0 | 0 |
| Usfs Kirkwood Bar Ranch | County of Nez Perce | 25 | 0 | 0 |
| Orogrande Water Assn | County of Nez Perce | 25 | 0 | 0 |
| Lenore School | County of Nez Perce | 6 | 0 | 0 |
| Twin City Foods Inc | County of Nez Perce | 5 | 0 | 0 |
| Kamp Tomahawk | County of Nez Perce | 0 | 0 | 0 |
| Bia North Idaho Indian Agency | County of Nez Perce | 0 | 0 | 0 |