| Public water system | Population served |
|---|---|
| CITY OF JACKSON | 189,673 |
| CITY OF GULFPORT | 75,056 |
| CITY OF SOUTHAVEN | 56,000 |
| CITY OF OLIVE BRANCH | 54,025 |
| CITY OF HATTIESBURG | 43,449 |
| CITY OF TUPELO | 37,000 |
| CITY OF MERIDIAN | 34,466 |
| CITY OF STARKVILLE | 32,027 |
| CITY OF BRANDON | 31,852 |
| CITY OF FLOWOOD | 31,574 |
| CITY OF GREENVILLE | 29,602 |
| CITY OF VICKSBURG | 29,238 |
| WEST JACKSON CO UTILITY DIST | 28,544 |
| CITY OF OXFORD | 28,500 |
| CITY OF JACKSON-MADDOX RD. | 28,098 |
| CITY OF PEARL | 27,115 |
| UNIVERSITY OF MISSISSIPPI | 26,874 |
| CITY OF OCEAN SPRINGS | 26,168 |
| CITY OF CLINTON | 25,000 |
| CITY OF RIDGELAND | 24,340 |
| COLUMBUS LIGHT & WATER | 23,616 |
| CITY OF BILOXI | 23,310 |
| CITY OF PASCAGOULA | 22,686 |
| CITY OF GAUTIER | 22,253 |
| CITY OF GREENWOOD | 19,140 |
| CITY OF LONG BEACH | 18,514 |
| CITY OF LAUREL | 18,100 |
| CITY OF CANTON | 16,785 |
| CITY OF CLEVELAND | 16,392 |
| CITY OF MADISON | 16,136 |
| CITY OF WEST POINT | 15,062 |
| CITY OF CORINTH | 15,000 |
| MS STATE UNIVERSITY | 15,000 |
| CLARKSDALE PUBLIC UTILITIES | 14,903 |
| CITY OF NATCHEZ | 14,520 |
| CITY OF HERNANDO | 14,457 |
| CITY OF HORN LAKE | 13,649 |
| CITY OF GRENADA | 12,762 |
| DIBERVILLE W/S | 12,721 |
| CITY OF MOSS POINT | 12,524 |
| CITY OF BROOKHAVEN | 12,513 |
| CITY OF MCCOMB | 12,041 |
| PICAYUNE UTILITIES, CITY OF | 11,859 |
| PRVWSD-PELAHATCHIE BAY | 11,790 |
| CULKIN WATER DIST | 11,730 |
| CITY OF RIPLEY | 11,351 |
| CITY OF PASS CHRISTIAN | 10,436 |
| BOONEVILLE WATER DEPT. | 9,995 |
| CITY OF FULTON | 9,929 |
| CITY OF YAZOO CITY | 9,913 |
| CITY OF BILOXI-NORTH | 9,858 |
| CITY OF HOLLY SPRINGS | 9,779 |
| CITY OF KOSCIUSKO | 9,646 |
| CITY OF PETAL | 9,509 |
| CITY OF INDIANOLA | 9,464 |
| CITY OF PONTOTOC | 9,398 |
| CITY OF AMORY | 9,350 |
| CITY OF BAY ST LOUIS | 9,284 |
| CITY OF NEW ALBANY | 8,900 |
| CMU - LAKE CAROLINE | 8,511 |
| CITY OF SENATOBIA | 8,354 |
| KEESLER AIR FORCE BASE | 8,006 |
| TOWN OF ABERDEEN | 7,783 |
| CITY OF LOUISVILLE | 7,545 |
| CITY OF BATESVILLE | 7,463 |
| CITY OF IUKA | 7,268 |
| KILN UTILITY AND FIRE DISTRICT OF HANCOC | 7,051 |
| CITY OF RICHLAND | 7,000 |
| CITY OF PHILADELPHIA | 6,921 |
| TOWN OF SALTILLO | 6,766 |
| TUNICA COUNTY UTILITY DISTRICT | 6,690 |
| TOWN OF CALEDONIA | 6,589 |
| CITY OF WAVELAND | 6,400 |
| JACKSON CO UTILITY AUTHORITY-EAST | 6,270 |
| JACKSON CO UTILITY AUTHORITY-WEST | 6,178 |
| CRYSTAL SPRINGS WATER SERVICE | 5,961 |
| CITY OF COLUMBIA | 5,900 |
| TOWN OF FLORENCE | 5,824 |
| CITY OF EUPORA | 5,586 |
| CITY OF FOREST | 5,430 |
| EAST LEFLORE WATER & SEWER DST | 5,206 |
| MACON ELECTRIC & WATER DEPT. | 5,174 |
| CITY OF WINONA | 5,071 |
| CITY OF BILOXI-FRENCH | 4,968 |
| CITY OF CARTHAGE | 4,901 |
| CITY OF BELZONI | 4,768 |
| STENNIS SPACE CENTER | 4,700 |
| TOWN OF TUNICA | 4,689 |
| CITY OF ELLISVILLE | 4,600 |
| CITY OF LELAND | 4,591 |
| CITY OF WAYNESBORO | 4,570 |
| GLENDALE UTILITY DISTRICT | 4,477 |
| TOWN OF BYHALIA | 4,446 |
| CITY OF WIGGINS | 4,300 |
| MS STATE HOSPITAL-WHITFIELD | 3,950 |
| G T & Y WATER DISTRICT INC | 3,907 |
| CITY OF HOUSTON | 3,772 |
| TOWN OF HAZLEHURST | 3,600 |
| TOWN OF GUNTOWN | 3,577 |
| CITY OF MAGEE | 3,526 |
| CITY OF SARDIS | 3,439 |
| CITY OF UNION | 3,432 |
| CITY OF MORTON | 3,400 |
| CITY OF WATER VALLEY | 3,380 |
| CITY OF NEWTON | 3,373 |
| NAVAL CONSTRUCTION BATTAL CTR | 3,347 |
| CITY OF POPLARVILLE | 3,334 |
Largest first by population served, as each employer reports it to its federal registry.
Source: U.S. Environmental Protection Agency, Safe Drinking Water Information System (SDWIS/Fed), community water systems. Data captured October 2, 2026.
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