We found 17 public water systems that could serve the same population as Westernaire Drive In Theater (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Lewistown City Of | Lewistown | 5,923 | 0 | 160 |
| Lehrkinds Big Spring Water | Lewistown | 2,575 | 0 | 9 |
| Mountain Acres Mb Hm Pk | Lewistown | 320 | 0 | 21 |
| Pine Meadows Golf Course Elks 456 The | Lewistown | 130 | 0 | 28 |
| Coal Banks Landing Blm | Lewistown | 120 | 0 | 0 |
| Bearpaw Arena | Lewistown | 100 | 0 | 0 |
| Canteen Water Service | Lewistown | 100 | 0 | 0 |
| Hackamore Club | Lewistown | 80 | 0 | 0 |
| Hi Heat Industries Inc | Lewistown | 75 | 0 | 0 |
| King Ranch Colony | Lewistown | 56 | 0 | 0 |
| Deerfield Hutterite Colony | Lewistown | 51 | 0 | 0 |
| Spring Creek Colony Lewistown | Lewistown | 48 | 0 | 0 |
| Crystal Lake Cg And Guard Station | Lewistown | 40 | 0 | 0 |
| James Kipp Campground Blm | Lewistown | 25 | 0 | 0 |
| Judith Shadows Golf Course | Lewistown | 25 | 0 | 0 |
| Fry Brothers Inc | Lewistown | 25 | 0 | 0 |
| Albertsons Lewistown No 2019 | Lewistown | 0 | 0 | 0 |