We found 119 public water systems that could serve the same population as Tri-mountain (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Houghton | Houghton | 7,512 | 0 | 1 |
| Hancock | Hancock | 4,500 | 0 | 4 |
| Michigan-american Water Co | County of Houghton | 3,717 | 16 | 0 |
| Laurium | County of Houghton | 2,268 | 0 | 0 |
| Adams Township | Painesdale | 2,010 | 0 | 0 |
| Calumet Township | County of Houghton | 1,789 | 0 | 0 |
| Painesdale | County of Houghton | 1,240 | 0 | 0 |
| Portage Township | County of Houghton | 1,214 | 0 | 8 |
| Lake Linden | Lake Linden | 1,203 | 0 | 3 |
| Mcdonald's-mill Iron | Muskegon | 1,100 | 0 | 0 |
| Mc Lain State Park | County of Houghton | 1,000 | 0 | 0 |
| Osceola Township | Dollar Bay | 830 | 0 | 5 |
| Calumet | Calumet | 818 | 0 | 0 |
| Mclain State Park-campground | Hancock | 800 | 0 | 0 |
| Chassell Township | Chassell | 800 | 0 | 2 |
| South Range | South Range | 745 | 0 | 0 |
| Torch Lake Township | County of Houghton | 646 | 0 | 0 |
| Mclain State Park-concessions | Hancock | 500 | 0 | 3 |
| Hiawatha Drive In | County of Houghton | 500 | 0 | 0 |
| Mcdonalds Restaurant | Whitehall | 425 | 0 | 0 |
| Tamarack Mills | County of Houghton | 420 | 0 | 0 |
| Kearsarge | County of Houghton | 340 | 0 | 0 |
| Florida Water Co. | County of Houghton | 320 | 0 | 0 |
| Franklin Township | Ripley | 300 | 0 | 7 |
| Centennial Location | County of Houghton | 270 | 0 | 0 |
| Franklin Quincy Water Authorit | County of Houghton | 260 | 0 | 5 |
| Twin Lakes State Park | Toivola | 250 | 0 | 3 |
| Twin Lakes St Park Mgr Res #2 | County of Houghton | 250 | 0 | 0 |
| Camp Kitwen | County of Houghton | 240 | 0 | 0 |
| Copper City | Copper City | 210 | 0 | 9 |
| Portage Lake Golf Course | County of Houghton | 200 | 0 | 0 |
| Portage Lake Golf Club | County of Houghton | 200 | 0 | 0 |
| Dodgeville | County of Houghton | 198 | 0 | 0 |
| Gregoire Waterworks Inc | County of Houghton | 175 | 0 | 0 |
| Earl B. Holman School | Atlantic Mine | 164 | 0 | 1 |
| Iron Horse Restaurant & Bar | Chassell | 150 | 0 | 9 |
| Healthy Choice | Muskegon | 150 | 0 | 0 |
| Portage Lake Golf Course - Mtu | Houghton | 140 | 0 | 15 |
| Atlantic Mine | County of Houghton | 140 | 0 | 0 |
| Baltic | County of Houghton | 140 | 0 | 0 |
| Holy Trinity Lutheran Church | County of Houghton | 125 | 0 | 0 |
| Pilgrim River Steak House | Houghton | 100 | 0 | 0 |
| Freda Water Co R Durocher | County of Houghton | 100 | 0 | 0 |
| Schmidt's Corner Bar | Houghton | 100 | 0 | 0 |
| Ottawa Lodge | County of Houghton | 100 | 0 | 0 |
| Doelle Senior Citizens Center | County of Houghton | 100 | 0 | 0 |
| Ripley School | County of Houghton | 100 | 0 | 0 |
| Steamer's Grill | County of Houghton | 100 | 0 | 0 |
| Onigaming Supper Club | County of Houghton | 100 | 0 | 0 |
| The Feed Mill Cafe | Chassell | 80 | 0 | 0 |
| Centennial Heights | County of Houghton | 80 | 0 | 0 |
| Julie's Motor Inn | Houghton | 75 | 0 | 0 |
| Agate Beach Campground | Toivola | 75 | 0 | 0 |
| Up Chuck's | Kenton | 75 | 0 | 0 |
| Omer's Wyandotte Hills | Toivola | 75 | 0 | 0 |
| Parkview Lodge & Grill | Toivola | 75 | 0 | 0 |
| Copper Co. Christian School | Chassell | 75 | 0 | 0 |
| Dreamland Hotel | Lake Linden | 75 | 0 | 0 |
| Vacationland Motel #1 | County of Houghton | 75 | 0 | 0 |
| Trail's End Bar | Sidnaw | 75 | 0 | 0 |
| American Legion #291 | Lake Linden | 60 | 0 | 0 |
| Hoppy's Bar | Kenton | 60 | 0 | 0 |
| Sidnaw School | County of Houghton | 60 | 0 | 0 |
| Twin Lakes Convenience | Toivola | 60 | 0 | 0 |
| Mikes Bar | County of Houghton | 60 | 0 | 0 |
| Houghton Citgo Station | Houghton | 55 | 0 | 0 |
| Houghton Co Memorial Airport | County of Houghton | 50 | 0 | 0 |
| Range Snowmobile Club | Atlantic Mine | 50 | 0 | 0 |
| Sidnaw Station | Sidnaw | 50 | 0 | 0 |
| Keweenaw Base Camp | Atlantic Mine | 50 | 0 | 0 |
| Finish Line Diner | Toivola | 50 | 0 | 0 |
| Naras Campground | County of Houghton | 50 | 0 | 0 |
| Longhorn Restaurant | County of Houghton | 50 | 0 | 0 |
| Mike's Bar | County of Houghton | 50 | 0 | 0 |
| Toivola Lunch, Inc. | County of Houghton | 50 | 0 | 0 |
| Karvakko's | Pelkie | 50 | 0 | 0 |
| Montague Twp Park | Montague | 50 | 0 | 0 |
| Heikkinen School | County of Houghton | 50 | 0 | 0 |
| Heath`s Country Inn | County of Houghton | 50 | 0 | 0 |
| Al Galy's Place | Muskegon | 50 | 0 | 0 |
| Emily Lake Campground | Toivola | 40 | 0 | 0 |
| Micks Bar | County of Houghton | 40 | 0 | 0 |
| Leblanc Motel | County of Houghton | 40 | 0 | 0 |
| Paananens Cabins | County of Houghton | 40 | 0 | 0 |
| Terrace Edge Cabins | County of Houghton | 40 | 0 | 0 |
| Quincy Development-mason | County of Houghton | 36 | 0 | 0 |
| Sidnaw Eats | Sidnaw | 35 | 0 | 0 |
| Paavola Senior Citizens Center | County of Houghton | 35 | 0 | 0 |
| Keweenaw Waterway Resort | County of Houghton | 35 | 0 | 0 |
| Holiday Motel | County of Houghton | 35 | 0 | 0 |
| Portage Lake Cabins | County of Houghton | 35 | 0 | 0 |
| Sunrise Cabins | County of Houghton | 35 | 0 | 0 |
| Usfs Kenton District Office | Kenton | 30 | 0 | 0 |
| Dreamland Campground | Lake Linden | 30 | 0 | 0 |
| Winona School | County of Houghton | 30 | 0 | 0 |
| Twin Lakes Resort | County of Houghton | 30 | 0 | 0 |
| Laird Township School | County of Houghton | 30 | 0 | 0 |
| Vfw Post 7646 | County of Houghton | 30 | 0 | 0 |
| Ridgeview Cabins | County of Houghton | 30 | 0 | 0 |
| U.p. Power | County of Houghton | 30 | 0 | 0 |
| United Parcel Service | County of Houghton | 30 | 0 | 0 |
| Mortgaged Acres | County of Houghton | 28 | 0 | 0 |
| Peninsula Christian Church | Dolar Bay | 25 | 0 | 0 |
| Village Bar | Pelkie | 25 | 0 | 0 |
| Mosquito Inn | Toivola | 25 | 0 | 0 |
| Jake's Bar | County of Houghton | 25 | 0 | 0 |
| Golden Harp Inn | County of Houghton | 25 | 0 | 0 |
| Superior View Restaurant | Atlantic Mine | 25 | 0 | 0 |
| Arcadian Acres Motel | Calumet | 25 | 0 | 0 |
| Whispering Pines Motel | County of Houghton | 25 | 0 | 0 |
| Copper Country Christian Sch | County of Houghton | 25 | 0 | 0 |
| Norway Lake South Campground | County of Houghton | 25 | 0 | 0 |
| Norway Lake Picnic Area | County of Houghton | 25 | 0 | 0 |
| Sparrow Rapids Campground | County of Houghton | 25 | 0 | 0 |
| Bob Lake Campground | County of Houghton | 25 | 0 | 0 |
| Agate Beach Concession | County of Houghton | 25 | 0 | 0 |
| Kennedy's Cabins | County of Houghton | 25 | 0 | 0 |
| Friendly Cafe | N Muskegon | 25 | 0 | 0 |
| Pilgrim Terrace Trailor Court | County of Houghton | 20 | 0 | 0 |