We found 85 public water systems that could serve the same population as Ellsworth Air Force Base (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Sturgis | Sturgis | 6,627 | 0 | 29 |
| Black Hawk Water User District | Black Hawk | 3,750 | 0 | 53 |
| Tri-county Rural Water System | Eagle Butte, Ridgeview | 2,880 | 0 | 64 |
| Butte-meade Swd-bean Well | Newell | 1,448 | 0 | 35 |
| Northdale Sanitary District | Black Hawk, Piedmont | 1,075 | 0 | 4 |
| Fort Meade Va Center | Fort Meade | 800 | 0 | 64 |
| Wonderland Homes | Piedmont | 750 | 0 | 12 |
| Blucksberg Mtn Water Association | Piedmont, Sturgis | 528 | 0 | 19 |
| Piedmont | Piedmont | 512 | 0 | 2 |
| Stagebarn Elementary School | County of Meade | 495 | 0 | 0 |
| Bear Butte Valley Water | Sturgis | 488 | 0 | 0 |
| Faith | Faith | 421 | 0 | 8 |
| Dot Rest Area 504-505a-tilford | Pierre, Rapid City | 400 | 0 | 0 |
| Kickstart Travel Center | Sturgis | 400 | 0 | 0 |
| Sun Valley Development | Piedmont, Rapid City | 385 | 0 | 1 |
| Weston Heights Homeowners Associatio | Rapid City | 372 | 0 | 9 |
| Butte-meade Swd-vale Well | Newell | 325 | 0 | 0 |
| Pine Hills Park | Black Hawk, Whitewood | 300 | 0 | 90 |
| Dot Rest Area 517a-spearfish | Pierre, Rapid City | 300 | 0 | 8 |
| Stagebarn Sanitary District | Black Hawk, Piedmont, Rapid City | 293 | 0 | 24 |
| Mountain View Estates | County of Meade | 282 | 0 | 0 |
| Murray Water Company | County of Meade | 270 | 0 | 0 |
| Trail West Sanitary District | Black Hawk, Piedmont | 260 | 0 | 0 |
| Woodland Hills | Black Hawk | 255 | 0 | 27 |
| Valley View Water Company | Black Hawk, Rapid City | 248 | 0 | 27 |
| Gfp-bear Butte Visitor's Center | Sturgis | 202 | 0 | 5 |
| Heritage Park | County of Meade | 188 | 0 | 0 |
| Elk Creek Steakhouse | Piedmont | 150 | 0 | 14 |
| Viewfield Rural Water System | Black Hawk, New Underwood | 150 | 0 | 16 |
| Spring Creek Acres | Black Hawk, Hot Springs | 145 | 0 | 16 |
| High Meadows Water Company | Black Hawk | 140 | 0 | 11 |
| Golden Valley Water Company | Black Hawk, Rapid City | 138 | 0 | 13 |
| Midland Heights | Black Hawk, Piedmont | 130 | 0 | 11 |
| Pleasant Valley Homeowners Associati | Piedmont, Strugis, Sturgis | 122 | 0 | 0 |
| Piedmont School Gym | County of Meade | 120 | 0 | 0 |
| Rolling Dice Subdivision | Piedmont | 120 | 0 | 0 |
| East Ridge Acres | Black Hawk, Piedmont | 115 | 0 | 0 |
| Molly B's Truck Stop | County of Meade | 110 | 0 | 0 |
| Sturgis Super 8 Motel | County of Meade | 110 | 0 | 0 |
| Elk Creek Village | Piedmont | 110 | 0 | 0 |
| Dry Creek Estates | Black Hawk | 105 | 0 | 0 |
| Peaceful Pines Ii | Black Hawk | 102 | 0 | 0 |
| Wickerhouse/andy's Barrel Room | County of Meade | 100 | 0 | 0 |
| Piedmont Elementary School | County of Meade | 100 | 0 | 0 |
| Golden Meadows | Black Hawk | 96 | 0 | 0 |
| Key City Trailer Court | County of Meade | 90 | 0 | 0 |
| Elk Creek Resort | Piedmont | 90 | 0 | 0 |
| Quaal Water Association | Black Hawk | 83 | 0 | 0 |
| Timberwood Park Estates | Piedmont, Rapid City | 75 | 0 | 0 |
| Crooked Oaks Canyon Homeowners | Black Hawk, Piedmont | 75 | 0 | 0 |
| Piedmont Medical Center | County of Meade | 75 | 0 | 0 |
| Bestgen Water Company | Sturgis | 73 | 0 | 0 |
| Autumn Meadows Sanitary District | Black Hawk, Piedmont | 68 | 0 | 0 |
| Rimrock Highland Estates Comm Assoc | Piedmont, Rapid City | 68 | 0 | 0 |
| Horseshoe Water Company | Piedmont | 65 | 0 | 0 |
| Elk Valley Ranchettes | Piedmont, Rapid City | 62 | 0 | 0 |
| Piedmont Preschool & Child Care | Piedmont | 55 | 0 | 0 |
| Ramada Inn | Black Hawk | 50 | 0 | 0 |
| Thunder Hills Campground | County of Meade | 50 | 0 | 0 |
| West Nike Subdivision | Rapid City | 50 | 0 | 0 |
| Rainbow Bible Ranch | Sturgis | 50 | 0 | 0 |
| Corral Trailer Court | County of Meade | 50 | 0 | 0 |
| Glencoe-sturgis Bike Week | County of Meade | 50 | 0 | 0 |
| Three Flags Rv Park | Black Hawk | 45 | 0 | 0 |
| Our Lady Of The Black Hills | County of Meade | 45 | 0 | 0 |
| Pine Cone Estates | Piedmont, Sturgis | 42 | 0 | 0 |
| Sacora Mobile Home Park | Piedmont, Sturgis | 42 | 0 | 0 |
| Gfp-bear Butte Trailhead | Sturgis | 40 | 0 | 0 |
| Travel Inn Mtl C/o H Bertelsen | County of Meade | 40 | 0 | 0 |
| Lofty Pines Ii | Piedmont | 38 | 0 | 0 |
| Slash J Saloon | Piedmont | 31 | 0 | 0 |
| Black Hills National Cemetery | Sturgis | 30 | 0 | 0 |
| Believer's Fellowship | County of Meade | 30 | 0 | 0 |
| Enning Elementary School | Sturgis | 30 | 0 | 0 |
| Wagon Wheel Village Ii | County of Meade | 30 | 0 | 0 |
| Boulder Park Campground | County of Meade | 30 | 0 | 0 |
| The Niche Sanitary District | Black Hawk, Sturgis | 30 | 0 | 0 |
| Union Center Elementary School | Sturgis | 26 | 0 | 0 |
| Red Apple Day Care Center | County of Meade | 25 | 0 | 0 |
| Plainview Elementary School | Plainview | 25 | 0 | 0 |
| Days End Campground | County of Meade | 25 | 0 | 0 |
| Gfp 10-b/bear Butte Cg Cistern | County of Meade | 25 | 0 | 0 |
| Gfp 10-k/bear Butte Cg Waterline | County of Meade | 25 | 0 | 0 |
| Maurine Elementary School | Maurine | 25 | 0 | 0 |
| Blm-ft Meade Picnic Area | County of Meade | 20 | 0 | 0 |