We found 93 public water systems that could serve the same population as Lake Mattoon Marina/campground (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Shelbyville | Shelbyville | 6,681 | 0 | 2 |
| Moweaqua | Moweaqua | 2,000 | 0 | 3 |
| Windsor | Windsor | 1,200 | 0 | 14 |
| Lincoln Prairie Water Company | County of Shelby | 1,015 | 0 | 0 |
| Findlay | Findlay | 800 | 0 | 57 |
| Stewardson | Stewardson | 747 | 0 | 3 |
| Tower Hill | Tower Hill | 650 | 0 | 23 |
| Cowden | Tower Hill | 612 | 0 | 7 |
| Strasburg | Strasburg | 603 | 0 | 7 |
| Herrick | Herrick | 524 | 0 | 81 |
| Sigel | Sigel | 386 | 0 | 2 |
| Riverfront Campground | County of Shelby | 300 | 0 | 0 |
| Sacred Heart Church | County of Shelby | 231 | 0 | 0 |
| Boy Scout Counsil 121 | County of Shelby | 200 | 0 | 0 |
| Camp Podesta Big Timber | County of Shelby | 200 | 0 | 0 |
| Sacred Heart Church | County of Shelby | 110 | 0 | 0 |
| The Timbers Restaurant | County of Shelby | 100 | 0 | 0 |
| Huffmans Campsites | County of Shelby | 100 | 0 | 0 |
| Ash Grove Christian Church | County of Shelby | 100 | 0 | 0 |
| Henton Campground | County of Shelby | 100 | 0 | 0 |
| Shelby Country Club | County of Shelby | 85 | 0 | 0 |
| Lee's Marathon | County of Shelby | 85 | 0 | 0 |
| Lee's Marathon | County of Shelby | 85 | 0 | 0 |
| American Legion Post 319 | County of Shelby | 80 | 0 | 0 |
| Lakewood United Methodist Chur | County of Shelby | 80 | 0 | 0 |
| New Hope Baptist Church | County of Shelby | 80 | 0 | 0 |
| New Hope Baptist Church | County of Shelby | 80 | 0 | 0 |
| Lakewood United Methodist Chur | County of Shelby | 80 | 0 | 0 |
| American Legion Post 319 | County of Shelby | 80 | 0 | 0 |
| Knobs Baptist Church | County of Shelby | 70 | 0 | 0 |
| Kingdom Hall Of Jehovahs Wit | County of Shelby | 70 | 0 | 0 |
| Oconee United Methodist Church | County of Shelby | 60 | 0 | 0 |
| St Pauls Ucc | County of Shelby | 60 | 0 | 0 |
| Oconee United Methodist Church | County of Shelby | 60 | 0 | 0 |
| Sanner Chapel United Methodist | County of Shelby | 56 | 0 | 0 |
| Sanner Chapel United Methodist | County of Shelby | 56 | 0 | 0 |
| Knobs Baptist | County of Shelby | 51 | 0 | 0 |
| Hidden Springs State Forest | County of Shelby | 50 | 0 | 0 |
| Hidden Springs State Forest | County of Shelby | 50 | 0 | 0 |
| Hidden Springs State Forest | County of Shelby | 50 | 0 | 0 |
| Miller Lake | County of Shelby | 50 | 0 | 0 |
| Hidden Springs State Forest | County of Shelby | 50 | 0 | 0 |
| Fame Church | County of Shelby | 50 | 0 | 0 |
| Grace United Methodist Church | County of Shelby | 50 | 0 | 0 |
| Grace United Methodist Church | County of Shelby | 50 | 0 | 0 |
| Fame Church | County of Shelby | 50 | 0 | 0 |
| Hidden Springs State Forest | County of Shelby | 50 | 0 | 0 |
| Hidden Springs State Forest | County of Shelby | 50 | 0 | 0 |
| Oconee Christian Academy | County of Shelby | 46 | 0 | 0 |
| Westervelt Christian Church | County of Shelby | 40 | 0 | 0 |
| Westervelt Christian Church | County of Shelby | 40 | 0 | 0 |
| Farmers Cafe | County of Shelby | 40 | 0 | 0 |
| County Market #462 | County of Shelby | 40 | 0 | 0 |
| German Church | County of Shelby | 35 | 0 | 0 |
| Sacred Heart School | County of Shelby | 32 | 0 | 0 |
| Sacred Heart School | County of Shelby | 32 | 0 | 0 |
| Mt Pleasent Church Of God | County of Shelby | 30 | 0 | 0 |
| Mt Pleasent Church Of God | County of Shelby | 30 | 0 | 0 |
| Shelby Co Country Club | County of Shelby | 25 | 0 | 0 |
| Barker Bros Allis Chalmers | County of Shelby | 25 | 0 | 0 |
| Wesley Chapel United Methodist | County of Shelby | 25 | 0 | 0 |
| Country Market #462 | County of Shelby | 25 | 0 | 0 |
| Kaskaskia Horseshoe Campground | County of Shelby | 25 | 0 | 0 |
| Wesley Chapel United Methodist | County of Shelby | 25 | 0 | 0 |
| Barker Bros Allis Chalmers | County of Shelby | 25 | 0 | 0 |
| Rollen Hills Restaurant | County of Shelby | 25 | 0 | 0 |
| Pakers Tavern & Lunch | County of Shelby | 25 | 0 | 0 |
| Knearems Appliance Sales | County of Shelby | 25 | 0 | 0 |
| Family Dollar 1441 Shelbyville | County of Shelby | 25 | 0 | 0 |
| Foor Junk Yard Auto Salvage | County of Shelby | 25 | 0 | 0 |
| Farmers Cafe | County of Shelby | 25 | 0 | 0 |
| Oconee School | County of Shelby | 25 | 0 | 0 |
| Pakers Tavern & Lunch | County of Shelby | 25 | 0 | 0 |
| WOOTERS CAFE | County of Shelby | 25 | 0 | 0 |
| Prairie Pure Vending | County of Shelby | 25 | 0 | 0 |
| Miller Lake | County of Shelby | 25 | 0 | 0 |
| Lakeside Mkt-glacier Vending | County of Shelby | 25 | 0 | 0 |
| Angus Links | County of Shelby | 25 | 0 | 0 |
| Boarman Truck Wash - Vending | County of Shelby | 25 | 0 | 0 |
| Clarksburg Community Center | County of Shelby | 25 | 0 | 0 |
| Huffmans Camp Site # 2 | County of Shelby | 25 | 0 | 0 |
| Huffmans Camp Site # 2 | County of Shelby | 25 | 0 | 0 |
| Clarksburg Community Center | County of Shelby | 25 | 0 | 0 |
| Ash Grove Christian Church | County of Shelby | 25 | 0 | 0 |
| Shelby Shine Car Wash-vending | County of Shelby | 25 | 0 | 0 |
| Eagle Creek Stt Pk | Unspec Pl In Co | 25 | 0 | 0 |
| Wolf Creek Stt Pk | Unspec Pl In Co | 25 | 0 | 0 |
| Lake Shelbyville Fdl Acess Are | Unspec Pl In Co | 25 | 0 | 0 |
| Hentons Campground | County of Shelby | 25 | 0 | 0 |
| Walmart #4259 | County of Shelby | 25 | 0 | 0 |
| WOOTERS CAFE | County of Shelby | 25 | 0 | 0 |
| Miller Sbdv | County of Shelby | 25 | 0 | 0 |
| Foor Junk Yard Auto Salvage | County of Shelby | 25 | 0 | 0 |