Public Water Systems
766 active public water systems in WY, tracked from EPA's Safe Drinking Water Information System (SDWIS) across all 50 states. See our methodology.
| System Name | Location | Population | Violations | PFAS |
|---|---|---|---|---|
| Prairie Wind Elementary School | Cheyenne,, WY | 491 | 5 | - |
| South Laramie W&S District | Laramie, WY | 490 | 63 | - |
| Snow King Condominiums | Jackson, WY | 490 | 6 | - |
| Lingle, Town Of | Lingle, WY | 486 | 28 | - |
| Sunny Meadows Village | Laramie, WY | 485 | 2 | - |
| Lone Tree Village MHP | Sacramento, WY | 475 | 13 | - |
| Nordic Ranches Water, LLC. | Etna, WY | 465 | 84 | - |
| Hudson, Town Of | Hudson, WY | 460 | 30 | - |
| Encampment, Town Of | Encampment, WY | 450 | 292 | - |
| South Torrington Water District | Torrington, WY | 450 | 15 | - |
| Camp New Fork-Boy Scouts of America | Jackson, WY | 450 | 23 | - |
| Sisecam Wyoming LLC | Green River, WY | 450 | 34 | - |
| Jim Bridger Power Plant | Point of Rocks, WY | 450 | 45 | - |
| Rolling Hills, Town Of | Rolling Hills, WY | 450 | 18 | - |
| American Soda LLC | Green River, WY | 450 | 94 | - |
| South Thermopolis W&S District | Thermopolis, WY | 450 | 7 | - |
| Western Hills MHP | Littleton, WY | 450 | 14 | - |
| Bomgaars Supply, Incorporated | Sioux City, WY | 450 | 3 | - |
| La Grange, Town Of | La Grange, WY | 448 | 21 | - |
| Big Piney, Town Of | Big Piney, WY | 445 | 72 | - |
| Ucross Guest Ranch | Clearmont, WY | 441 | 15 | - |
| Sinclair, Town Of | Sinclair, WY | 433 | 27 | - |
| Flying J Travel Plaza | Sinclair, WY | 425 | 19 | - |
| Hulett, Town Of | Hulett, WY | 420 | 29 | - |
| Teton Science School-Jackson Campus | Jackson, WY | 420 | 0 | - |
| Westview Mhc | Gillette, WY | 416 | 1 | - |
| Rock Springs/Green River KOA | Rock Springs, WY | 415 | 29 | - |
| Midwest, Town Of | Midwest, WY | 410 | 34 | - |
| Means Improvement & Service District | Gillette, WY | 410 | 13 | - |
| Wydot-South Pass Rest Area | Basin, WY | 401 | 4 | - |
| Baggs, Town Of | Baggs, WY | 400 | 116 | - |
| Ten Sleep, Town Of | Ten Sleep, WY | 400 | 36 | - |
| Nickelson Farms Water Company | Gillette, WY | 400 | 3 | - |
| Freedom Hills Subdivision | Gillette, WY | 400 | 32 | - |
| Spring Creek Improvement District | Jackson, WY | 400 | 196 | - |
| Sapp Brothers Truck Stop | Cheyenne, WY | 400 | 28 | - |
| Downer Neighborhood I&s District | Sheridan, WY | 400 | 4 | - |
| Arbys Restaurant #7432 | Greensboro, WY | 386 | 30 | - |
| Nine-Mile Water & Sewer District | Laramie, WY | 380 | 0 | - |
| Natrona County Int'l Airport | Casper, WY | 375 | 15 | - |
| Cv Laramie MHP, LLC | Cedaredge, WY | 375 | 17 | - |
| Green Acres Mobile Home Park | Powell, WY | 375 | 20 | - |
| Lewis Mobile Home Park | Rock Springs, WY | 370 | 41 | - |
| Thayne, Town Of | Thayne, WY | 366 | 13 | - |
| Lindley Park, LLC | Evanston, WY | 362 | 19 | - |
| Countryside Water Users, Inc. | Gillette, WY | 360 | 19 | - |
| Fort Laramie National Historic Site | Fort Laramie, WY | 352 | 0 | - |
| Calico Italian Restaurant | Wilson, WY | 350 | 3 | - |
| Lucerne Water and Sewer Dist. | Thermopolis, WY | 350 | 31 | - |
| WY DOT-Independence Ra | Casper, WY | 350 | 5 | - |