Mississippi High School Activities Association The place for high school sports in Mississippi 2017-19 Swimming Regions
| Class I | ||
| Region 1/Dist. 1 | Region 2/Dist. 8 | |
| Amory | Northeast Jones | |
| Ingomar Attendance Center | Our Lady Academy | |
| Itawamba AHS | Pass Christian | |
| Madison St. Joseph | Purvis | |
| MS School For Math And Science | Sacred Heart | |
| Rosa Fort | St. Patrick | |
| St. Andrew’s | St. Stanislaus | |
| Tupelo Christian | Vancleave | |
| Class II | ||
| Region 1/Dist. 2 | Region 2/Dist. 8 | |
| Center Hill | Biloxi | |
| Cleveland | Brandon | |
| Desoto Central | Clinton | |
| Germantown | D’Iberville | |
| Hernando | Gulfport | |
| Horn Lake | Hancock | |
| Lafayette | Harrison Central | |
| Lake Cormorant | Hattiesburg | |
| Lewisburg | Long Beach | |
| Madison Central | Meridian | |
| Murrah | Northwest Rankin | |
| Olive Branch | Oak Grove | |
| Oxford | Ocean Springs | |
| Ridgeland | Pearl | |
| Southaven | Pearl River Central | |
| Starkville | Petal | |
| Tupelo | Picayune | |
| Vicksburg | South Jones | |
| Warren Central | St Martin | |
| West Point | West Harrison | |
| West Jones | ||
