We found 114 public water systems in Hamilton county (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Speculator V | Lake Pleasant, Speculator | 2,008 | 0 | 4 |
| Nys-sacandaga Campsite | Hope | 1,350 | 0 | 2 |
| Indian Lake Wd | Indian Lake | 900 | 0 | 6 |
| Moffitt Beach Spc | Lake Pleasant | 900 | 0 | 0 |
| Lewey Lake Spc | Lake Pleasant | 836 | 0 | 12 |
| Long Lake Wd | Long Lake | 800 | 0 | 42 |
| Limekiln Lake Spc | Inlet | 500 | 0 | 11 |
| Wells Wd | Wells | 450 | 0 | 20 |
| Blue Mt Lake Wd | Indian Lake | 400 | 0 | 82 |
| Forked Lake Spc | Long Lake | 300 | 0 | 10 |
| Eighth Lake Spc | Inlet | 300 | 0 | 12 |
| Fowler Camp & Conf Center | Lake Pleasant | 250 | 0 | 20 |
| Point Comfort Spc | Arietta | 250 | 0 | 0 |
| Little Sand Point Spc | Arietta | 250 | 0 | 1 |
| Lake Durant Spc | Indian Lake | 240 | 0 | 15 |
| Golden Beach Spc | Long Lake | 200 | 0 | 11 |
| Murdocks Resort Ent Inc | Inlet | 200 | 0 | 4 |
| Cedarlands Scout Reservation | Long Lake | 200 | 0 | 0 |
| Sabattis Adventure Scout Camp | Long Lake | 150 | 0 | 0 |
| Arrowhead Park | Inlet | 142 | 0 | 15 |
| Evergreen Lake, Inc. | Arietta | 140 | 0 | 4 |
| The Irondequoit Club | Arietta | 136 | 0 | 31 |
| Deming Lakeside Trailer Park | Inlet | 124 | 0 | 0 |
| Snow Lake Water Supply | Indian Lake | 120 | 0 | 0 |
| Antlers Of Raquette Lake, Inc. | Long Lake | 120 | 0 | 0 |
| Lake Pleasant Park Inc | Lake Pleasant | 103 | 0 | 0 |
| Brown Tract Ponds Spc | Long Lake | 100 | 0 | 0 |
| Sagamore Lodge | Long Lake | 100 | 0 | 0 |
| Burkes | Long Lake | 100 | 0 | 0 |
| Thornbush Acres Rv Park | Indian Lake | 100 | 0 | 0 |
| Nacodi Campsites | Lake Pleasant | 100 | 0 | 0 |
| Seventh Lake House | Inlet | 90 | 0 | 0 |
| Raquette Lake Wd | Long Lake | 90 | 0 | 0 |
| Half Moon Beach, Inc. | Arietta | 85 | 0 | 0 |
| Camp Huntington - Cortland | Long Lake | 80 | 0 | 0 |
| Lake Eaton Spc | Long Lake | 80 | 0 | 0 |
| Alpine, The | Hope | 80 | 0 | 0 |
| Black Bear Lodges | Inlet | 80 | 0 | 0 |
| Rocky Point Homeowners Assn | Inlet | 80 | 0 | 0 |
| Swifty's Restaurant And Pub, Inc. | Indian Lake | 77 | 0 | 0 |
| Oxbow Inn | Arietta | 75 | 0 | 0 |
| Poplar Point Spc | Arietta | 75 | 0 | 0 |
| Rainbows End Campground | Hope | 73 | 0 | 0 |
| Lapland Lake | Benson | 70 | 0 | 0 |
| Piseco Common School | Arietta | 70 | 0 | 0 |
| Timberlock Camp | Indian Lake | 66 | 0 | 0 |
| Holls Inn On Fourth Lake | Inlet | 65 | 0 | 0 |
| Marina Motel | Inlet | 64 | 0 | 0 |
| Camp Sans Souci | Lake Pleasant | 62 | 0 | 0 |
| Deer Meadows | Inlet | 61 | 0 | 0 |
| Screamen Eagle | Inlet | 60 | 0 | 0 |
| Smiths Cottages | Indian Lake | 60 | 0 | 0 |
| Oxbow Lake Motel | Arietta | 60 | 0 | 0 |
| Northwoods Lodge | Lake Pleasant | 60 | 0 | 0 |
| Arietta Hotel | Arietta | 60 | 0 | 0 |
| Sandy Cove | Arietta | 60 | 0 | 0 |
| Stiefvaters Lakeside Cottages | Inlet | 58 | 0 | 0 |
| Risleys Rush Point | Long Lake | 57 | 0 | 0 |
| Camp Driftwood | Indian Lake | 54 | 0 | 0 |
| Galushas Cottages | Indian Lake | 52 | 0 | 0 |
| WOODS INN | Inlet | 50 | 0 | 0 |
| Hope Diner | Hope | 50 | 0 | 0 |
| Tamarack Cafe | Inlet | 50 | 0 | 0 |
| Rainbow Lake Club Development | Indian Lake | 50 | 0 | 0 |
| Nelsons Cottages - Inlet | Inlet | 50 | 0 | 0 |
| Lake Kora | Long Lake | 50 | 0 | 0 |
| Melody Lodge | Lake Pleasant | 50 | 0 | 0 |
| Inlet Public School | Inlet | 50 | 0 | 0 |
| John Dillon Park | Long Lake | 50 | 0 | 0 |
| Flats, The | Hope | 50 | 0 | 0 |
| Bear Path Inn | Morehouse | 50 | 0 | 0 |
| Drakes Inn | Inlet | 48 | 0 | 0 |
| Cliff House Association | Inlet | 48 | 0 | 0 |
| Claytons Cottages | Inlet | 46 | 0 | 0 |
| Cortland College - Antlers Center | Long Lake | 45 | 0 | 0 |
| Harveys 4th Lake Cottages | Inlet | 43 | 0 | 0 |
| Pleasant Manor | Arietta | 40 | 0 | 0 |
| Hamilton Lake Seminar Center | Lake Pleasant | 40 | 0 | 0 |
| The Willis Lodges | Inlet | 40 | 0 | 0 |
| Dodges Moonlight Bay | Lake Pleasant | 38 | 0 | 0 |
| Kates Place - Inlet | Inlet | 38 | 0 | 0 |
| Chief Sabael Cottages | Indian Lake | 38 | 0 | 0 |
| Peters Cottages | Inlet | 36 | 0 | 0 |
| Reale Cottages On 4th | Inlet | 35 | 0 | 0 |
| Tony Harpers Pizza & Clam Shack | Long Lake | 35 | 0 | 0 |
| Watersedge | Lake Pleasant | 34 | 0 | 0 |
| Wakely Lodge And Golf Course | Indian Lake | 32 | 0 | 0 |
| Inlet Town Hall | Inlet | 30 | 0 | 0 |
| Squaw Brook Homeowners Assn | Indian Lake | 30 | 0 | 0 |
| Snowy Mt. Inn | Indian Lake | 30 | 0 | 0 |
| Abanake Camp | Lake Pleasant | 30 | 0 | 0 |
| 2nd Hand Treasures | Arietta | 30 | 0 | 0 |
| Furnells Cottages | Indian Lake | 30 | 0 | 0 |
| Sleepy Hollow | Arietta | 27 | 0 | 0 |
| Twin Coves On Indian Lake | Indian Lake | 27 | 0 | 0 |
| Bonnie Brae Lodge | Arietta | 27 | 0 | 0 |
| Squaw Brook Motel | Indian Lake | 26 | 0 | 0 |
| Burkes Cottages | Indian Lake | 26 | 0 | 0 |
| Finders Keepers | Inlet | 25 | 0 | 0 |
| Piseco Community Hall | Arietta | 25 | 0 | 0 |
| The Lake Store | Indian Lake | 25 | 0 | 0 |
| Whitney Park | Long Lake | 25 | 0 | 0 |
| Mulligans/inlet Golf Course | Inlet | 25 | 0 | 0 |
| Hamilton County Jail | Lake Pleasant | 25 | 0 | 0 |
| Ts E-z Mart | Inlet | 25 | 0 | 0 |
| Adirondack Reader Cafe | Inlet | 25 | 0 | 0 |
| Kalils Grocery | Inlet | 25 | 0 | 0 |
| Marys White Pine Bakery | Inlet | 25 | 0 | 0 |
| Piseco Lake Lodge | Arietta | 25 | 0 | 0 |
| Bagels, Baubles & Beads | Inlet | 25 | 0 | 0 |
| Casey's Corner | Arietta | 25 | 0 | 0 |
| Iggys At Moffitt Beach | Lake Pleasant | 25 | 0 | 0 |
| Turkey Water Works Association | Inlet | 4 | 0 | 0 |
| Lakes Log Cabin | Arietta | 0 | 0 | 0 |