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| System Name |
| Agassiz Water Users District |
| All Seasons Water Users District |
| Barnes Rural Water District |
| Cass Rural Water District |
| Central Plains Water District |
| Dakota Rural Water District |
| East Central Regional Water District |
| Fort Berthold Rural Water Supply System |
| Garrison Rural Water District |
| Greater Ramsey Water District |
| McKenzie County Water Resource District |
| McLean-Sheridan Rural Water |
| Missouri West Water System |
| North Prairie Regional Water District |
| Northeast Regional Water District |
| Northwest Rural Water District |
| R&T Water District |
| South Central Regional Water District |
| Southeast Water Users District |
| Southwest Water Authority |
| Spirit Lake Water Resource Management |
| Standing Rock Water System-ND |
| State Line Water Cooperative |
| Stutsman Rural Water District |
| Tri-County Water District |
| Turtle Mountain Water System (Turtle Mountain Public Utilities Commission) |
| Upper Souris Water District |
| Walsh Rural Water District |
| Western Area Water Supply Authority |