We found 36 public water systems that could serve the same population as Hagerstown Municipal Water Works (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Hartley Hills Country Club | Hagerstown | 999 | 0 | 0 |
| Marvin Stohler-mgr | Hagerstown | 999 | 0 | 0 |
| Lancaster Elementary School | Hagerstown | 580 | 0 | 0 |
| Randall Cline | Hagerstown | 478 | 0 | 0 |
| Uaw Local 1501 | Hagerstown | 100 | 0 | 0 |
| Ossian Conservation Club | Hagerstown | 100 | 0 | 0 |
| North Oak Baptist | Hagerstown | 95 | 0 | 0 |
| Camp Wapi-kamigi | Hagerstown | 90 | 0 | 0 |
| Camp Wapi-kamigi | Hagerstown | 90 | 0 | 0 |
| Camp Wapi-kamigi | Hagerstown | 90 | 0 | 0 |
| Camp Wapi-kamigi | Hagerstown | 90 | 0 | 0 |
| Camp Wapi-kamigi | Hagerstown | 90 | 0 | 0 |
| Camp Wapi Kamigi | Hagerstown | 90 | 0 | 0 |
| Boy Scout Club Campground | Hagerstown | 80 | 0 | 0 |
| Oley's Pizza | Hagerstown | 75 | 0 | 0 |
| Kingdom Hall Jehovah Witness | Hagerstown | 57 | 0 | 0 |
| Liberty Center Park | Hagerstown | 50 | 0 | 0 |
| Keystone U.m.c. | Hagerstown | 50 | 0 | 0 |
| Gas America #52 | Hagerstown | 50 | 0 | 0 |
| Woods Locker Service | Hagerstown | 50 | 0 | 0 |
| Willow Springs Restaurant | Hagerstown | 50 | 0 | 0 |
| Adams - Wells Training Center | Hagerstown | 45 | 0 | 0 |
| Hagerstown Municipal Park | Hagerstown | 40 | 0 | 0 |
| Twin Falls Mobile Home Community | Hagerstown | 36 | 0 | 0 |
| Maplewood County Home | Hagerstown | 27 | 0 | 0 |
| Christian Church - Boston | Hagerstown | 25 | 0 | 0 |
| Pow-wow Ridge Campground | Hagerstown | 25 | 0 | 0 |
| Milton Inn | Hagerstown | 25 | 0 | 0 |
| Golden Years Mph | Hagerstown | 25 | 0 | 0 |
| Camp Clements, Inc. | Hagerstown | 25 | 0 | 0 |
| Ossian Packing Company | Hagerstown | 25 | 0 | 0 |
| Rihm Inc. | Hagerstown | 25 | 0 | 0 |
| Highland Lake Golf Course | Hagerstown | 25 | 0 | 0 |
| Highland Lake Golf Course | Hagerstown | 25 | 0 | 0 |
| Hagerstown Mobile Home Court | Hagerstown | 25 | 0 | 0 |
| Nettle Creek Church Of Brethren | Hagerstown | 25 | 0 | 0 |