We found 17 public water systems that could serve the same population as Stone State Park (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Sioux City Water Supply | Sioux City | 82,759 | 72 | 27 |
| John Morrell & Company | Sioux City | 1,325 | 0 | 0 |
| Dorothy Pecaut Nature Center | Sioux City | 506 | 0 | 0 |
| Cloverleaf Cold Storage | Sioux City | 400 | 0 | 0 |
| Kind And Knox | Sioux City | 350 | 0 | 0 |
| Mikes Saloon | Sioux City | 240 | 0 | 23 |
| Green Valley Golf Course | Sioux City | 180 | 0 | 7 |
| Global Foods Processing Inc | Sioux City | 170 | 0 | 0 |
| Midamerican Energy Co. Neal North | Sioux City | 134 | 0 | 4 |
| Raskin Pack | Sioux City | 123 | 0 | 0 |
| Hidden Acres Country Club | Sioux City | 100 | 0 | 0 |
| Midamerican Energy Co - Neal South | Sioux City | 100 | 0 | 0 |
| Country Drive | Sioux City | 35 | 0 | 0 |
| Whiskey Creek (schaeff) | Sioux City | 35 | 0 | 0 |
| Whiskey Creek (feedlot) | Sioux City | 34 | 0 | 0 |
| Stockmens | Sioux City | 33 | 0 | 0 |
| Prairie Hills | Sioux City | 27 | 0 | 0 |