| Name of Entity | # of Wells | Type of Diversion | Surface Source | Other Sources | Total Max Cap. (gpm) | Max Storage Raw (gal) | Max Storage Treated (gal) | Treatment Methods | Percent Metered |
| Afton | 3 | N/A | Intermittent Spring | 7,350 | 2,700,000 | DC | 0 | ||
| Air Base Acres Improvement & Service District | 1 | Consecutive System | Consecutive System from City of Casper, WY. | Consecutive System from Casper, WY. | 12,500 | 2,600,000 | 0 | Casper treats water before we get it | 100 |
| Airport Bench Water and Sewer District | 3 | Greybull | Madison/Big Horn Wells | 1,500 | DC | 100 | |||
| Albin | 3 | N/A | None | None | 280 | 0 | 125,000 | DC | 100 |
| Alpine | 2 | Alluvial Wells | N/A | 475 | 0 | 750,000 | DC | 100 | |
| Alta Community Pipeline | 0 | N/A | 1 spring | 0 | 0 | 0 | None | 0 | |
| American Road WD | 6 | N/A | None | None | 115 | 110,000 | 0 | DC | 100 |
| Antelope Valley Improvement & Sewer District | 4 | N/A | N/A | 440 | 701,000 | DC | 95 | ||
| Aspen/Aspen II | 4 | N/A | None | None | 4800 | 0 | 0 | None | 10 |
| Avalon Mobile Manor | 1 | N/A | Ogallala Aquifer | Unknown | 14,000 | None | 0 | ||
| Baggs | 0 | InF Gallery | Little Snake River | High Savery Dam (feeds into the Little Snake River) | 300 | 0 | 330,000 | DC, F, ultraF, iron and manganese pretreatment | 100 |
| Bairoil | 6 | IG | Abel Springs | Amoco Wells | 690 | 0 | 350,000 | DC | 0 |
| Basin | 2 | S. Big Horn Co. JPB | None | 600 | 24,000 | 1,000,000 | DC | 99 | |
| Bear River | 3 | N/A | None | None | 150 | 0 | 33,000 | DC | 99 |
| Bedford Water & Sewer District | N/A | ||||||||
| Belle Fourche Pipeline | 2 | N/A | None | None | 25 | 16,000 | 16,000 | None | 0 |
| Big Piney | 5 | N/A | None | None | 600 | 0 | 100,000 | DC | 95 |
| Big Valley & Crossed Arrows Improvement District | 1 | N/A | N/A | 15 | 5,000 | None | 0 | ||
| Black Hills Power & Light | 3 | DM | Reservoir | Madison Aquifer | 1,900 | 260,000,000 | DC, OT | ||
| Bridger Valley JPB | 0 | SD | Smiths Fork, Blacks Fork | None | 2290 | 0 | 1,500,000 | DC, F, TP | 100 |
| Buffalo | 1 | SD, IG | Clear Creek | Tie Hack Res. | 5,385 | 12,000,000 | 1,450,000 | TP | 95 |
| Buffalo Valley Water District | 3 | Burnt Ridge Moraine ( glacial deposits) | Lava Creek Watershed | Rain | 40 | 40,000 | DC | 0 | |
| Burlington | 2 | N/A | Unknown | 150,000 | DC | 100 | |||
| Burns | 4 | N/A | None | None | 800 | 0 | 200,000 | DC | 0 |
| Byron | 0 | N/A | None | Shoshone Municipal Pipeline | 625 | 0 | 400,000 | None | 100 |
| Cambria I&S | 0 | N/A | None | City of Newcastle | 50 | 64,300 | 0 | None | 100 |
| Casper | 20 | Surface Direct,InF Gallery, | North Platte River | Central Wyoming Regional Water System | 36,111 | 0 | 22,000,000 | DC, F, TP, Ozonation, Actiflo | 100 |
| Cedar Hills WC | 2 | N/A | None | None | 180 | 0 | 88,000 | DC | 0 |
| Centennial WSD | 2 | N/A | None | None | 107 | 0 | 66,000 | DC | 95 |
| Central Campbell County Improvement & Service District | 5 | N/A | 970 | 0 | 540,000 | DC | 99 | ||
| Cheyenne | 39 | Surface Direct, Alluvial Wells, Dam | Crow Creek, Douglas Creek, Little Snake | N/A | 22,000 | 2,117,900,000 | 35,000,000 | DC, F, TP | 99.5 |
| Chugwater | 3 | N/A | N/A | 405 | 0 | 190,000 | DC | 97 | |
| Clearmont | 2 | N/A | None | None | 150 | 0 | 400,000 | DC | 98 |
| Clearview I&S | 0 | SD, OT | Green River | None | 0 | 0 | DC, F, TP | 100 | |
| Cody | 0 | Inlet in reservoir | Buffalo Bill Reservoir (water purchased from Shoshone Municipal Pipeline) | N/A | 8,160 | 83,300 | 2,200,000 | DC, F, Flocculation | 99 |
| Cokeville | 2 | N/A | N/A | 1,325 | 500,000 | DC | 1 | ||
| Cook Road | 1 | N/A | None | None | 120 | 0 | 445,000 | DC | 100 |
| Cooper Subdivision Mobile Home Park | 1 | N/A | 0 | 0 | None | 0 | |||
| Country Side Court | 1 | N/A | Unknown | 500 | None | 0 | |||
| Countryside Water Users Inc. | 2 | N/A | N/A | 180 | 67,000 | DC | 0 | ||
| County Meadows LLC | 3 | N/A | Casper Aquifer | N/A | 0 | 0 | None | 0 | |
| Cowley | 1 | N/A | Deaver Municipal Water and Shoshone Municipal Pipeline | 950 | 0 | 200,000 | DC | ||
| Crestview | 1 | N/A | None | None | 120 | 0 | 570,000 | DC | 100 |
| Dayton | 1 | InF Gallery | Tongue River | Madison Formation Well | 1,980 | 40,000 | 330 | TP | 99.3 |
| Deaver | 0 | SD | Shoshone Muni Pipeline | None | UNK | 0 | 350,000 | 100 | |
| Dillman Estate Homeowners Association | 6 | N/A | N/A | 200 | 120 | DC | 95 | ||
| Dixon | 0 | IG | Little Snake River | None | 220 | 0 | 100,000 | DC, F, OT | 100 |
| Douglas | 1 | Surface Direct | North Platte River | Little Boxelder Spring | 3,700 | 0 | 6,075,000 | DC | 100 |
| Dubois | 4 | N/A | N/A | 930 | 650,000 | DC, Ortho Phosphate | 99 | ||
| East Thermopolis | 3 | Surface Direct, Alluvial Wells | Big Horn River and three wells (consecutive system with Thermopolis | N/A | DC, F, TP | 95 | |||
| Edgerton | 0 | Central Regional Water System-Casper | 100 | ||||||
| Eight Mile Subdivision | 1 | N/A | None | Fort Union | 75 | 0 | 87,000 | DC | 0 |
| Elk Mountain | 2 | N/A | N/A | 250 | 200,000 | DC | 100 | ||
| Encampment | 0 | Surface Direct | North Fork of the Encampment River | N/A | 2,688 | 651,657 | 629,000 | DC, F, TP | 100 |
| Etna | 0 | OT | Springs | None | 6,000 | 0 | None | 0 | |
| Evanston | 0 | SD, IG | Bear River | Sulphur Creek Reservoir | 12,500 | 5,750,000 | DC, F, TP | 100 | |
| Evansville | 0 | Surface Direct | North Platte River | N/A | 2,000 | 3,000,000 | 3,000,000 | DC, F, TP | 100 |
| Evergreen Mobile Home Park LLC | 1 | N/A | 17 | 2,000 | DC | ||||
| Fairview WSD | 1 | N/A | None | None | 400 | 250,000 | None | 100 | |
| Force Road JPB | 2 | N/A | None | None | 115 | 0 | 250,000 | DC | 0 |
| Fort Laramie | 2 | N/A | None | None | 741 | 50,000 | 0 | None | 100 |
| Frannie | N/A | 99 | |||||||
| Freedom WSD | 1 | N/A | None | None | 400,000 | DC | 100 | ||
| Gardens North Homeowners | 1 | 124 | 0 | 200,000 | DC | 0 | |||
| Gillette | 26 | N/A | None | None | 7,452 | 0 | 24,000,000 | DC, OT | 100 |
| Glendo | 2 | N/A | N/A | 230 | 485,000 | DC | 99 | ||
| Glenrock | 2 | N/A | None | None | 1700 | 0 | 1,750,000 | DC | 95 |
| GR/RS/SW Co. Joint Powers Water Board | 0 | Surface Direct | Green River | N/A | 22,000 | 0 | 20,000,000 | DC, F, TP, ozonation | 100 |
| Grand View WC | 0 | N/A | None | Shoshone Pipeline | 400 | 1,650,000 | 0 | None | 0 |
| Granger | 0 | SD | Green River | None | 700 | 0 | 500,000 | TP | 0 |
| Greater Smoot WSD | 1 | N/A | None | None | 700 | 500,000 | 0 | None | 100 |
| Green River | 0 | SD | Green River | None | 3,472 | 0 | 3,300,000 | DC, F, TP | 100 |
| Green Valley Estates I&S | 1 | N/A | None | None | 100 | 0 | 150,000 | DC | 0 |
| Greybull | 3 | N/A | N/A | 1,300 | 0 | 1,750,000 | DC | 100 | |
| Gros Ventre Utility | 2 | AW | None | 700 | 19,000 | 0 | None | 0 | |
| Grover W&S | 1 | N/A | None | None | 250 | 0 | 220,000 | DC | 100 |
| Guernsey | 3 | N/A | None | None | 1,900 | 750,000 | 0 | None | 100 |
| Hanna | 0 | This is by transmission to a 20M concrete resevoir 1 mi. west of WTP | Rattle Snake Creek | N/A | 694 | 20,000,000 | 1,000,000 | DC, F | 96 |
| Happy Valley Pipe Line Company | 0 | Spring | Water Cress #1 & #2 | 2 springs | 80 | 800 | 800 | DC | 0 |
| Hartville | 4 | N/A | None | None | 1,350 | 0 | 100,000 | DC | 87 |
| Heritage Village Water & Sewer | N/A | ||||||||
| Hudson | 10 | Alluvial Wells | N/A | 300 | 10,000 | 200,000 | DC | 97 | |
| Hulett | 1 | N/A | 450 | 0 | 500,000 | DC | 95 | ||
| Hyatville WC | 1 | N/A | None | None | 100 | 0 | 25,000 | None | 0 |
| Indian Paintbrush HA | 2 | N/A | 60 | 50,000 | None | 0 | |||
| Jackson | 7 | Alluvial Wells | N/A | N/A | 9,450 | 0 | 2,880,000 | DC, liniar chain poly phosphate | 100 |
| Juby's Mobile Home Park | 0 | Surface Direct | City of Cody | N/A | N/A | 0 | 0 | None | 100 |
| Kaycee | 2 | N/A | N/A | 160 | 0 | 150,000 | DC | 100 | |
| Kemmerer-Diamondville JPB | 0 | SD | Hams Fork River | None | 2,903 | 231,600,555 | 5,140,159 | DC, F | 100 |
| Kirby | 0 | N/A | None | Thermopolis | 0 | 50,000 | DC | 99 | |
| LaBarge | 0 | IG | Green River | None | 640 | 0 | 600,000 | DC | 0 |
| LaGrange | 2 | N/A | None | None | 300 | 300,000 | 0 | DC | 99 |
| Lance Creek WSD | 2 | UNK | White & Dakota Rivers | None | 70 | 210,000 | 210,000 | DC | 98 |
| Lander | 0 | Surface Direct | Middle Fork of Popo Agie River | N/A | 8 | 7,000,000 | DC, F, TP | 95 | |
| Laramie | 9 | Surface Direct | Sodergreen Lake | Solder Well, Pope Well Field, Turner Wells, Spur Wells | 14,583 | 0 | 13,700,000 | DC, F, TP, Ozone | 80 |
| Lingle | 3 | N/A | N/A | 1,500 | 150,000 | 150,000 | None | 1 | |
| Lost Springs | |||||||||
| Lovell | 0 | Buffalo Bill Reservoir, North Fork and South Fork of the Shoshone River | unknown | 1,300,000 | water is treated by Shoshone Municipal Pipeline | 100 | |||
| Lower Bench WSD | 0 | N/A | None | JPB | 0 | 0 | None | 100 | |
| Lucerne Water and Sewer District | Big Horn River | Thermopolis Treatment Plant from Big Horn River | 200 | 200,000 | Thermpolois treatment plant | 100 | |||
| Lusk | 3 | N/A | None | None | 1,600 | 0 | 1,000,000 | DC | 99 |
| Lyman | 0 | N/A | None | JPB | 400 | 0 | 0 | DC, F, TP | 99 |
| Manderson | 2 | N/A | None | None | 100 | 0 | 70,000 | DC | 95 |
| Manville | 3 | Alluvial Wells | N/A | Unknown | 50,000 | DC | 0 | ||
| Marbleton | 6 | N/A | |||||||
| Means W&S | 2 | N/A | None | None | 200 | 0 | 320,000 | DC | 100 |
| Medicine Bow | 3 | N/A | None | None | 620 | 0 | 1,500,000 | DC, OT | 95 |
| Meeteetse | 0 | SD | Lower Sunshine Res. | None | 350 | 0 | 568,000 | OT | 99 |
| Midwest | 0 | OT | Platte River | None | 350 | 0 | 1,750,000 | DC | 100 |
| Miller-Lower Mobile Home Park | 2 | N/A | 0 | ||||||
| Mills | 7 | IG, AW | N. Platte River | None | 3,600 | 0 | 4,665,000 | DC, F, OT | 98 |
| Monroe Ave Mobile Home Park | 3 | Alluvial Wells | Nipper 1,2,3 | 100 | None | 0 | |||
| Moorcroft | 4 | N/A | Fox Hills, Lance, Madison | 118 | 1,000 | 500,000 | DC | 99 | |
| Mountain View | 0 | N/A | None | Bridger Valley JPB | 100 | ||||
| Mountain View estates | |||||||||
| N. Riverton WSD | 1 | N/A | None | None | 33 | 500 | 0 | None | 100 |
| Newcastle | 4 | Artesian Wells | N/A | N/A | 2,550 | 5,200,000 | None | 90 | |
| Newton Industrial Park I&SS | 1 | N/A | N/A | 25 | 0 | 0 | None | 0 | |
| North Afton W&S | 0 | N/A | None | Afton Utility | 2,875 | 350,000 | 0 | None | 0 |
| North Platte WSD | 0 | N/A | None | City of Casper | 0 | 0 | None | 100 | |
| North Uinta County I&S | 3 | N/A | None | None | 80 | 0 | 36,000 | DC | 100 |
| Northend Water Users | 3 | N/A | None | None | 750 | 200,000 | 0 | None | 100 |
| Northwest Rural | 0 | SD | Buffalo Bill Res. | None | 0 | 865,000 | TP | 100 | |
| Opal | 3 | N/A | N/A | 92 | 30,000 | 250,000 | DC, point of use reverse osmosis units - high natural fluoride | 90 | |
| Orchard Valley Water Co. | 2 | N/A | N/A | 500 | 20,000 | 0 | None | 100 | |
| Osage Water District | 1 | N/A | N/A | 100 | 0 | 250,000 | DC | 100 | |
| Osmond Pipeline | 0 | Spring | None | 600 | 11,000 | 0 | None | 100 | |
| Pavillion | 5 | N/A | 25 | 308,700 | DC | 97 | |||
| Peoples I&S | 1 | N/A | None | None | 55 | 0 | 100,00 | DC | 100 |
| Pine Bluffs | 7 | Alluvial Wells | N/A | 1,900 | 470,000 | DC | 99 | ||
| Pine Haven | 2 | N/A | Madison Formation Well | 480 | 248,000 | DC | 100 | ||
| Pinedale | 0 | Surface Direct | FREMONT LAKE | N/A | 10,000 | 1,000,000,000 | 500,000 | DC | 15 |
| Pioneer park Manufactured Home Community | 0 | City of Green River | N/A | N/A | 0 | 0 | None | 98 | |
| Pioneer WSD | 0 | N/A | None | Central Wyoming Regional Water/JPB | N/A | 0 | 0 | 100 | |
| Pleasant View Water Inc. | 0 | Consecutive System: City of Casper | N/A | 0 | 0 | TP | 100 | ||
| Powell | 0 | Buffalo Bill Reservoir (water purchased from Shoshone Municipal Pipeline) | N/A | 1,900,000 | 1,900,000 | None | 98 | ||
| Raintree improvement and service dist. | 2 | N/A | 25 | 5,000 | None | 0 | |||
| Ranchester | 0 | SD | Tongue River | None | 700 | 0 | 500,000 | DC, FL, TP | 99 |
| Rawlins | 3 | Surface Direct | North Platte | Springs | 4,000 | 250,000,000 | 19,000,000 | DC, F | 100 |
| Red Lane Domestic Water Inc | Thermoplis water | 17,000 | 100 | ||||||
| Ridgewater Improvement District | 0 | Consecutive System: City of Douglas & North Platte River | Sheep Mountain Well | Unknown | 100 | ||||
| Riverside Mobile Home Court | 2 | N/A | N/A | N/A | 0 | 0 | None | 0 | |
| Riverton | 13 | Surface Direct | Wind River | N/A | 5,400 | 5,350,000 | DC, F, TP | 90 | |
| Rock River | 0 | Surface Direct,InF Gallery | Rock Creek | N/A | 0 | 0 | DC, F | 99 | |
| Rock Springs | 0 | Surface Direct | Green River | 12,000 | DC, F, TP | 100 | |||
| Rolling Hills | 5 | N/A | None | None | 400 | 0 | 300,000 | DC | 99 |
| Ryan Park B Tract WC | 3 | N/A | None | None | 35 | None | |||
| Salt Creek Water District | 1 | N/A | 300 | 0 | 0 | None | 0 | ||
| Saratoga | 0 | IG | N. Platte River | None | 1,250 | 50,000 | 2,000,000 | DC, F, OT | 98 |
| Shell Valley West Water & Sewer District | 0 | Consecutive System | N/A | N/A | None | 100 | |||
| Shell Water Users Inc. | 0 | Greybull - Consecutive System | N/A | N/A | 0 | 0 | None | 100 | |
| Sheridan / Sheridan Area Water Supply Joint Powers Board | 0 | Surface Direct | Big Goose Creek, Twin Lakes Reservoir, Park Reservoir, Dome Reservoir | N/A | 10,386 | 1,181,000,000 | 12,090,000 | DC, F, TP, on-site generation of sodium hypochlorite at one of the surface water treatment plants | 100 |
| Shoshone Municipal Pipeline | 0 | Dam | Buffalo Bill Reservoir | The Shoshone River below Buffalo Bill Reservoir is used as an emergency source | 15,278 | 316,890,097 | 1,183,500 | DC, F, TP, corrosion control | 100 |
| Shoshoni | 4 | N/A | None | None | 880 | 0 | 500,000 | DC | 98 |
| Sierra Madre | 2 | N/A | None | None | 263 | 0 | 280,000 | DC | 99 |
| Sinclair | 0 | SD | Rawlins system | None | 1,388 | 0 | 500,000 | DC, F, TP | 100 |
| Sleepy Hollow | 4 | N/A | 1,200 | 500,000 | DC | 99 | |||
| South Big Horn County JPB | 2 | N/A | 800 | 100,000 | DC | 90 | |||
| South Cheyenne Water & Sewer District | N/A | ||||||||
| South Fork Estates WD | 1 | N/A | None | None | 60 | 0 | 45,000 | DC | 0 |
| South Riverside Acres Water & Improvement District | 2 | N/A | N/A | 70 | 35,000 | None | 100 | ||
| South Side Water System | 1 | N/A | N/A | 35 | 5,000 | DC | 0 | ||
| South Thermopolis | 0 | N/A | None | Thermopolis | 38 | 271,709 | 100 | ||
| South Torrington W&S | 0 | N/A | None | Torrington | N/A | N/A | N/A | DC | 100 |
| South Worland Water Users | 0 | N/A | Consecutive system from Worland | Unknown | None | 100 | |||
| Southeast Water and Sewer District | N/A | ||||||||
| Spring Creek ID | 2 | N/A | None | None | 1,200 | DC | 33 | ||
| Squaw Creek Water District | 2 | N/A | None | None | 40 | 0 | 40,000 | DC | 100 |
| Star Valley Ranch | 2 | N/A | None | None | 2,200 | 670,000 | 0 | None | 33 |
| Star Valley Trailer Court | 1 | N/A | N/A | 1,200 | 12,000 | 12,000 | DC | 0 | |
| Sun Ridge Estates Homeowners Ass'n | 1 | N/A | N/A | 120,000 | 0 | 120,000 | DC | 0 | |
| Sundance | 4 | N/A | Madison Formation- Minilusa Formation | 1,000 | 400,000 | 490,000 | DC | 98 | |
| Superior | 3 | N/A | None | None | 360 | 150,000 | 450,000 | DC, F, TP | 98 |
| Sylvan Bay Homeowners Assn. | 0 | N/A | None | None | 120 | 15,000 | 0 | None | 0 |
| Ten Sleep | 2 | N/A | None | None | 226 | 0 | 0 | None | 0 |
| Teton Shadows | 1 | N/A | None | None | 10,000 | 0 | None | 0 | |
| Teton Village Water & Sewer District | N/A | ||||||||
| Thayne | 1 | N/A | None | None | 800 | 0 | 300,000 | DC | 0 |
| Thermopolis | 4 | SD | Bighorn River | None | 4,000 | 500,000 | 2,750,000 | DC, F, TP, OT | 100 |
| Torrington | 4 | N/A | Non Potable Wells for irrigation of PK, SC and Hospital | 7,300 | 3 | DC, Reverse Osmosis | 90 | ||
| Upton | 5 | N/A | None | None | 1100 | 0 | 650,000 | DC | 99 |
| Vista West ISD | 2 | N/A | None | None | 130 | 0 | 210,000 | DC | 98 |
| Wamsutter | 3 | N/A | N/A | 217 | 350,000 | DC | 98 | ||
| Wardwell Water & Sewer District | 0 | Consecutive System | N/A | N/A | None | 100 | |||
| Warm Spring WD | 1 | N/A | None | Hart #1 | 245 | 0 | 200,000 | DC | 0 |
| Washakie Rural Improvement & Service District | 0 | N/A | Water purchased from Big Horn Regional JPB and City of Worland | 80,000 | 80,000 | DC | 100 | ||
| Water Unlimited Inc. | 1 | N/A | N/A | 1,350 | None | 1 | |||
| Wessex Improvement and Service District | 1 | N/A | N/A | 25 | 16,000 | None | 0 | ||
| West End Water | 1 | N/A | None | None | 1,150 | 0 | 0 | None | 100 |
| West Side W&S | |||||||||
| Westridge Water Users Assn | 2 | N/A | 125 | 94,000 | 94,000 | DC | 95 | ||
| Wheatland | 7 | N/A | None | None | 2,500 | 0 | 2,000,000 | DC | 90 |
| White Mt. Water & Sewer District | Green River | N/A | 2,000,000 | 2,000,000 | TP, Ozone | 100 | |||
| Worland | 2 | N/A | N/A | 99 | |||||
| Wright | 5 | N/A | N/A | None | 1,500 | 0 | 1,500,000 | DC | 100 |
| Yoder | 4 | N/A | N/A | 102 | 125,000 | 0 | None | 95 |
Water Development Commission Homepage | Search the WWDC Website