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 |
|---|---|---|---|---|
| Wydot-Orin Junction Rest Area | Casper, WY | 1,900 | 5 | - |
| Dubois, Town Of | Dubois, WY | 1,870 | 259 | - |
| Gtnp-Jackson Lake Lodge | Moose, WY | 1,830 | 0 | - |
| Bridger Valley Joint Powers Board | Mountain View, WY | 1,728 | 45 | - |
| Saratoga, Town Of | Saratoga, WY | 1,720 | 44 | - |
| WY DOT- Lusk Rest Area | Casper, WY | 1,700 | 7 | - |
| WY DOT-Fort Steele Rest Area | Laramie, WY | 1,660 | 17 | - |
| Vista West Water Company | Casper, WY | 1,600 | 20 | - |
| Lusk, Town Of | Lusk, WY | 1,576 | 156 | - |
| Love`s Travel Center | Cheyenne, WY | 1,545 | 5 | - |
| Travel Centers of America | Westlake, WY | 1,525 | 39 | - |
| Ynp-Norris | Yellowstone Np, WY | 1,515 | 8 | - |
| Gtnp-Signal Mtn | Moose, WY | 1,514 | 50 | - |
| WY DOT-Summit Rest Area | Laramie, WY | 1,500 | 10 | - |
| Rafter J Subdivision HOA | Wilson, WY | 1,500 | 177 | - |
| Pioneer Water & Sewer District | Casper, WY | 1,500 | 16 | - |
| Aspens Pines W&S District | Wilson, WY | 1,400 | 22 | - |
| Alpine, Town Of | Alpine, WY | 1,300 | 69 | - |
| Jackson Hole Airport | Wilson, WY | 1,300 | 106 | - |
| Ranchester, Town Of | Ranchester, WY | 1,297 | 14 | - |
| Antelope Valley I&s District (Avisd) | Gillette, WY | 1,280 | 11 | - |
| Sundance, City Of | Sundance, WY | 1,279 | 17 | - |
| WY DOT-Star Valley Rest Area | Rock Springs, WY | 1,260 | 4 | - |
| Basin, Town Of | Basin, WY | 1,250 | 20 | - |
| Mountain View, Town Of | Mountain View, WY | 1,250 | 21 | - |
| Cheyenne Hills Church | Cheyenne, WY | 1,211 | 0 | - |
| Ynp- Madison Junction Water System | Yellowstone, WY | 1,205 | 10 | - |
| Bear River Regional Joint Powers | Bear River, WY | 1,200 | 50 | - |
| Pine Bluffs, Town Of | Fort Collins, WY | 1,186 | 391 | - |
| Guernsey, Town Of | Guernsey, WY | 1,157 | 121 | - |
| Upton, Town Of | Upton, WY | 1,100 | 10 | - |
| Winchester Hills | Cheyenne, WY | 1,078 | 40 | - |
| Burns Board of Public Utilities | Burns, WY | 1,024 | 144 | - |
| Super Pumper/Sinclair #5 | Idaho Falls, WY | 1,022 | 149 | - |
| Hoback Stores, Inc. Dba Hoback Market | Jackson, WY | 1,018 | 37 | - |
| Dornan`s Moose Enterprises | Wilson, WY | 1,010 | 46 | - |
| Moorcroft, Town Of | Moorcroft, WY | 1,009 | 43 | - |
| Pioneer Mobile Home Park | Rock Springs, WY | 1,000 | 17 | - |
| WY DOT-Evanston Port of Entry | Rock Springs, WY | 1,000 | 10 | - |
| Washakie Rural Water System | Worland, WY | 990 | 7 | - |
| We Soda Alkali, LLC | Green River, WY | 950 | 29 | - |
| Ynp-Tower Junction Ranger Station | Yellowstone National Park, WY | 940 | 1 | - |
| Clearview I&s District | Rock Springs, WY | 930 | 64 | - |
| Teton Village Water & Sewer District | Teton Village, WY | 906 | 14 | - |
| Melody Ranch Improvement & Service Dist. | Jackson, WY | 900 | 35 | - |
| South Big Horn County Jpb | Worland, WY | 900 | 10 | - |
| Marbleton, Town Of | Marbleton, WY | 861 | 1,526 | - |
| K Bar Z Guest Ranch | Cody, WY | 847 | 16 | - |
| WY DOT-Bitter Creek East Ra | Rock Springs, WY | 843 | 1 | - |
| Fox Park Subdivision | Gillette, WY | 843 | 8 | - |