Water service in Ada County may be provided by the county water authority, individual municipal water departments, or rural water districts, depending on where a property is located. There are 3 Water Departments locations in Ada County, Idaho.

Property owners in Ada County who are connecting a new building to public water or requesting a new meter installation should contact the applicable water department well in advance, as permit review, inspection scheduling, and tap fee collection may take several weeks before service can begin.

List of Ada County, Idaho Water Departments

Boise Water Treatment

View Details Call Now (208) 384-4262

Boise Water Treatment

Address
Get Direction
Hours

Eagle Water Department

View Details Call Now (208) 939-0242

Eagle Water Department

Address
Get Direction
Hours

Idaho State Water Department

View Details Call Now (208) 334-2190

Idaho State Water Department

Address
Get Direction
Hours

Residents of Ada County who rely on private wells rather than a public water system should contact the county health department for information about voluntary testing programs. The county water department can advise on whether extending public water service to a private-well property is feasible in your area.

You may also find Water Departments locations in neighboring counties including Canyon, Elmore, Ada.