We found 30 public water systems that could serve the same population as Calvert City Municipal Water Department (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| North Marshall Water District #1 | Benton | 16,276 | 34 | 58 |
| North Marshall Water Dist/#2 | Benton | 8,000 | 0 | 0 |
| Benton Water & Sewer | County of Marshall | 7,981 | 0 | 53 |
| Jonathan Creek Water District | County of Marshall | 6,831 | 0 | 54 |
| Ky Dam Village St Park | Gilbertsville | 1,800 | 0 | 0 |
| Hardin Water Department | County of Marshall | 1,606 | 0 | 23 |
| West Marshall Water District | Benton | 660 | 0 | 0 |
| South Marshall Water District | Hardin | 512 | 0 | 0 |
| Four Rivers Boy Scout Camp | Benton | 500 | 0 | 0 |
| Will Vera Landing | Benton | 400 | 0 | 0 |
| Camp Currie | Benton | 200 | 0 | 0 |
| Calvert Dr In | Calvert City | 150 | 0 | 0 |
| Northstar Steel Co | Calvert City | 120 | 0 | 0 |
| Jonathan Creek Cafe | Benton | 84 | 0 | 0 |
| Shawnee Bay Resort | County of Marshall | 80 | 0 | 0 |
| King Creek Resort | Benton | 60 | 0 | 0 |
| Circle K Mobile Home Park | Calvert City | 55 | 0 | 0 |
| Lone Valley Apostolic Church | Calvert City | 50 | 0 | 0 |
| Tva Marshall Substation | Calvert City | 25 | 0 | 0 |
| Kentucky Lake Lodge Restaurant | Hardin | 25 | 0 | 0 |
| Bee Spring Lodge | Benton | 25 | 0 | 0 |
| Fin N Feather | Hardin | 25 | 0 | 0 |
| Fawnwood Court | Benton | 25 | 0 | 0 |
| Cozy Cove Resort | Benton | 20 | 0 | 0 |
| Jonathan Creek Court | Benton | 20 | 0 | 0 |
| Malcolm Creek Resort | Benton | 20 | 0 | 0 |
| Lakeview Club | Gilbertsville | 16 | 0 | 0 |
| Lakeview Club | Gilbertsville | 14 | 0 | 0 |
| Possum Trot Trailer Park | Calvert City | 8 | 0 | 0 |
| Southern Komfort Resort | County of Marshall | 0 | 0 | 0 |