We found 12 public water systems that could serve the same population as Camp Foster Ymca Inc. (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Spirit Lake Waterworks | Spirit Lake | 5,578 | 0 | 3 |
| West Okoboji Harbor Association | Spirit Lake | 390 | 0 | 9 |
| Okoboji View Golf Course | Spirit Lake | 300 | 0 | 12 |
| Cuttys Okoboji Resort Club | Spirit Lake | 285 | 0 | 7 |
| Anglers Bay Resort | Spirit Lake | 150 | 0 | 8 |
| Okoboji Camp Owners Cooperative | Spirit Lake | 103 | 0 | 0 |
| Henderson Veterinary Clinic | Spirit Lake | 100 | 0 | 0 |
| Harlan Beach Resort & Trailer Park | Spirit Lake | 80 | 0 | 0 |
| Sand Bar Beach Resort | Spirit Lake | 63 | 0 | 0 |
| Okoboji Yacht Club,james Power | Spirit Lake | 51 | 0 | 0 |
| Hedge Row Resort | Spirit Lake | 37 | 0 | 0 |
| YMCA CAMP FOSTER-OFFICE WELL | Spirit Lake | 25 | 0 | 0 |