We found 23 public water systems in Osceola county (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Osceola Rural Water System-north | May City | 4,495 | 14 | 2 |
| Sibley Public Water Supply | Sibley | 2,808 | 0 | 3 |
| Osceola Rural Water System-south | Sutherland | 2,115 | 0 | 5 |
| Ocheyedan Water Works | Ocheyedan | 499 | 0 | 4 |
| Ashton Municipal Water Department | Ashton | 468 | 0 | 0 |
| ZION LUTHERAN CHURCH SCHOOL | County of Osceola | 300 | 0 | 0 |
| St. John's Lutheran Church | County of Osceola | 300 | 0 | 0 |
| Melvin Waterworks | Melvin | 214 | 0 | 0 |
| Jim's Drive-in | County of Osceola | 200 | 0 | 0 |
| Harris Water Supply | Harris | 170 | 0 | 1 |
| 9 & 59 Club | County of Osceola | 150 | 0 | 0 |
| Cedar Cabin Lounge & Supper Cl | County of Osceola | 108 | 0 | 0 |
| Sibley Golf & Country Club | County of Osceola | 89 | 0 | 0 |
| Sunrise Farms | Harris | 35 | 0 | 0 |
| May City Cafe | County of Osceola | 25 | 0 | 0 |
| Ashton Park-osceola Conserv | County of Osceola | 25 | 0 | 0 |
| Don And Jo's Station And Cafe | County of Osceola | 25 | 0 | 0 |
| Simil | County of Osceola | 25 | 0 | 0 |
| Sharbondy Pk-osceola Conservat | County of Osceola | 25 | 0 | 0 |
| May City Pit Ar-osceola Conser | County of Osceola | 25 | 0 | 0 |
| Iowa Lake-osceola Conservation | County of Osceola | 25 | 0 | 0 |
| Vfw Post 7373 | County of Osceola | 25 | 0 | 0 |
| Ashton Motel And Cafe | County of Osceola | 25 | 0 | 0 |