Find Your Public Water Source

Now, choose the SOURCE of your Public Utility's water.

About half of all Michigan residents are served by public water systems that draw drinking water from surface water bodies. Of these, most draw from the Great Lakes, or a channel connected to a Great Lake. A few systems get their water from inland lakes and streams.


Supply Name County Intake Location Population Served
Baraga Baraga Lake Superior 2240
Isle Royale National Park Keweenaw Lake Superior noncommunity
L' Anse Baraga Lake Superior 2300
Marquette Marquette Lake Superior 23700
Ontonagon Ontonagon Lake Superior 2919
Sault Ste Marie Chippewa St Marys River 14689
Michigan City, Indiana Berrien Lake Michigan 454
Benton Harbor Berrien Lake Michigan 9970
Benton Harbor Township Berrien Lake Michigan 6470
Bridgman Berrien Lake Michigan 2291
Charlevoix Charlevoix Lake Michigan 3124
Escanaba Delta Lake Michigan 13659
Gladstone Delta Lake Michigan 4396
Grand Rapids Kent Lake Michigan 316560
Holland Board of Public Works Ottawa Lake Michigan 56543
Lake Charter Township Berrien Lake Michigan 10535
Ludington Mason Lake Michigan 10058
Menominee Menominee Lake Michigan 8800
Muskegon Muskegon Lake Michigan 87880
Muskegon Heights Muskegon Lake Michigan 10856
New Buffalo Berrien Lake Michigan 3320
Northwest Ottawa County Water System Ottawa Lake Michigan 40416
South Haven Van Buren Lake Michigan 9305
St Joseph Berrien Lake Michigan 35569
Traverse City Grand Traverse Lake Michigan 29476
Wyoming Kent Lake Michigan 229088
Alpena Alpena Lake Huron 15680
Caseville Huron Lake Huron 3990
Detour Chippewa Lake Huron 325
Great Lakes Water Authority via Lake Huron Treatment Plant Wayne Lake Huron see [Detroit River] intake location
Harbor Beach Huron Lake Huron 5766
Huron Regional Water Authority Huron Lake Huron 4311
Huron Shore Regional Utility Authority Iosco Lake Huron 14369
Lexington Sanilac Lake Huron 5561
Mackinac Island Mackinac Lake Huron 469
Saginaw-Midland Water Supply Arenac Lake Huron 339247
St Ignace Mackinac Lake Huron 2900
Algonac St Clair St Clair River 17176
Harsen's Island - The Old Club St Clair St Clair River noncommunity
Marine City St Clair St Clair River 7852
Marysville St Clair St Clair River 9959
Port Huron St Clair St Clair River 63247
St. Clair St Clair St Clair River 8755
St. Clair Water and Sewer Authority St Clair St Clair River 4200
Grosse Pointe Farms Wayne Lake St Clair 14900
Ira Township St Clair Lake St Clair 11112
Mount Clemens Macomb Lake St Clair 18405
New Baltimore Macomb Lake St Clair 12720
Wyandotte Wayne Detroit River 25883
Great Lakes Water Authority via Springwells, Northeast, Southwest, and Water Works Park II Treatment Plants Wayne Detroit River 3805927
Toledo, Ohio Monroe Lake Erie 33816
Frenchtown Township Monroe Lake Erie 16481
Monroe Monroe Lake Erie 53961
Adrian Lenawee Lake Adrian 21133
Ann Arbor Washtenaw Huron River 127855
Blissfield Lenawee River Raisin 3739
Deerfield Lenawee River Raisin 943
Gratiot Area Water Authority Gratiot Pine River 16251
Manistique Schoolcraft Indian River 3874

If your source is the Great Lakes Water Authority (GLWA) find the source of your water using the button below.

Make a note of your water's source, then take the next step in the toolkit to see how your water is treated.


Michigan’s abundant surface water is one of the state’s most remarkable features. In addition to the Great Lakes, which contain one-fifth of the Earth’s surface freshwater and over 3,000 miles of shoreline, Michigan holds over 11,000 inland lakes and ponds, and 36,000 miles of streams. These ample freshwater resources are used by the state’s residents and visitors for business, entertainment, and as a source of drinking water.