Lead pipes by county in Mississippi
Lead, galvanized and unknown service lines reported by the water systems serving each Mississippi county.
| County | Lead | Galv. | Unknown | Systems |
|---|
| Adams County | 1,395 | 0 | 338 | 5 |
| Alcorn County | 36 | 0 | 0 | 7 |
| Amite County | 0 | 0 | 0 | 4 |
| Attala County | 0 | 0 | 0 | 6 |
| Benton County | 0 | 0 | 0 | 2 |
| Bolivar County | 0 | 0 | 4 | 12 |
| Calhoun County | 19 | 0 | 968 | 8 |
| Carroll County | 0 | 0 | 0 | 4 |
| Chickasaw County | 2 | 0 | 3 | 9 |
| Choctaw County | 0 | 0 | 0 | 4 |
| Claiborne County | 0 | 0 | 3,346 | 5 |
| Clarke County | 14 | 386 | 0 | 5 |
| Clay County | 0 | 0 | 0 | 5 |
| Coahoma County | 0 | 150 | 246 | 7 |
| Copiah County | 0 | 12 | 0 | 9 |
| Covington County | 0 | 0 | 0 | 6 |
| Desoto County | 43 | 37 | 207 | 17 |
| Forrest County | 1 | 216 | 19,469 | 11 |
| Franklin County | 0 | 0 | 0 | 2 |
| George County | 0 | 0 | 0 | 5 |
| Greene County | 6 | 0 | 0 | 5 |
| Grenada County | 24 | 1 | 3 | 8 |
| Hancock County | 0 | 0 | 4,398 | 11 |
| Harrison County | 220 | 1,291 | 32,565 | 21 |
| Hinds County | 0 | 13,819 | 36,340 | 13 |
| Holmes County | 0 | 0 | 1 | 11 |
| Humphreys County | 0 | 0 | 0 | 1 |
| Itawamba County | 11 | 0 | 0 | 7 |
| Jackson County | 974 | 0 | 26,418 | 11 |
| Jasper County | 0 | 0 | 0 | 12 |
| Jefferson County | 0 | 0 | 0 | 5 |
| Jefferson Davis County | 34 | 0 | 0 | 7 |
| Jones County | 0 | 2,465 | 0 | 18 |
| Kemper County | 0 | 0 | 0 | 5 |
| Lafayette County | 2 | 0 | 541 | 13 |
| Lamar County | 17 | 0 | 31 | 10 |
| Lauderdale County | 0 | 0 | 10,880 | 13 |
| Lawrence County | 0 | 0 | 0 | 6 |
| Leake County | 0 | 0 | 0 | 7 |
| Lee County | 0 | 0 | 0 | 19 |
| Leflore County | 0 | 0 | 0 | 4 |
| Lincoln County | 0 | 0 | 5,251 | 8 |
| Lowndes County | 0 | 0 | 0 | 10 |
| Madison County | 0 | 0 | 776 | 13 |
| Marion County | 0 | 0 | 0 | 8 |
| Marshall County | 0 | 0 | 0 | 5 |
| Monroe County | 0 | 0 | 1,976 | 11 |
| Montgomery County | 0 | 0 | 0 | 2 |
| Neshoba County | 0 | 0 | 0 | 6 |
| Newton County | 3 | 1 | 0 | 8 |
| Noxubee County | 1 | 0 | 320 | 3 |
| Oktibbeha County | 0 | 0 | 0 | 9 |
| Panola County | 0 | 0 | 192 | 15 |
| Pearl River County | 0 | 138 | 0 | 10 |
| Perry County | 0 | 0 | 0 | 3 |
| Pike County | 1 | 0 | 4,920 | 9 |
| Pontotoc County | 0 | 0 | 0 | 9 |
| Prentiss County | 2 | 0 | 0 | 10 |
| Quitman County | 0 | 0 | 0 | 2 |
| Rankin County | 0 | 0 | 0 | 30 |
| Scott County | 0 | 0 | 0 | 10 |
| Sharkey County | 0 | 0 | 0 | 1 |
| Simpson County | 0 | 0 | 19 | 13 |
| Smith County | 0 | 0 | 0 | 3 |
| Stone County | 200 | 496 | 53 | 7 |
| Sunflower County | 1 | 0 | 21 | 8 |
| Tallahatchie County | 0 | 0 | 0 | 4 |
| Tate County | 6 | 89 | 2 | 4 |
| Tippah County | 0 | 0 | 0 | 10 |
| Tishomingo County | 0 | 0 | 0 | 8 |
| Tunica County | 0 | 0 | 2,014 | 2 |
| Union County | 0 | 0 | 0 | 8 |
| Walthall County | 0 | 0 | 0 | 4 |
| Warren County | 0 | 0 | 9,570 | 6 |
| Washington County | 2 | 0 | 141 | 7 |
| Wayne County | 0 | 0 | 0 | 6 |
| Webster County | 120 | 0 | 0 | 4 |
| Wilkinson County | 1 | 55 | 0 | 4 |
| Winston County | 1 | 0 | 0 | 8 |
| Yalobusha County | 1,378 | 0 | 109 | 7 |
| Yazoo County | 0 | 0 | 699 | 9 |
Systems serving several counties are counted in each. Source: EPA SDWIS service line inventory, 2026 Q3.