Lead pipes by county in Tennessee
Lead, galvanized and unknown service lines reported by the water systems serving each Tennessee county.
| County | Lead | Galv. | Unknown | Systems |
|---|
| Anderson County | 0 | 1,082 | 9,509 | 5 |
| Bedford County | 1 | 0 | 9,023 | 5 |
| Benton County | 0 | 0 | 0 | 2 |
| Bledsoe County | 0 | 0 | 0 | 2 |
| Blount County | 0 | 133 | 5,523 | 5 |
| Bradley County | 0 | 4 | 18,119 | 2 |
| Campbell County | 0 | 1 | 2,078 | 4 |
| Cannon County | 0 | 0 | 0 | 1 |
| Carroll County | 0 | 8 | 724 | 7 |
| Carter County | 5 | 0 | 15,383 | 7 |
| Cheatham County | 5 | 281 | 11 | 4 |
| Chester County | 0 | 0 | 0 | 1 |
| Claiborne County | 0 | 0 | 0 | 4 |
| Clay County | 0 | 0 | 1 | 2 |
| Cocke County | 0 | 0 | 0 | 1 |
| Coffee County | 0 | 635 | 0 | 3 |
| Crockett County | 5 | 8 | 2,600 | 4 |
| Cumberland County | 0 | 0 | 0 | 4 |
| Davidson County | 2,818 | 21,855 | 76,180 | 3 |
| Decatur County | 0 | 0 | 1,535 | 4 |
| Dekalb County | 0 | 0 | 0 | 4 |
| Dickson County | 0 | 0 | 0 | 3 |
| Dyer County | 3 | 7 | 7,918 | 4 |
| Fayette County | 0 | 0 | 145 | 6 |
| Fentress County | 1 | 0 | 6,854 | 3 |
| Franklin County | 0 | 0 | 0 | 8 |
| Gibson County | 399 | 215 | 2,293 | 10 |
| Giles County | 0 | 24 | 2,141 | 6 |
| Grainger County | 251 | 104 | 556 | 2 |
| Greene County | 0 | 71 | 2,550 | 7 |
| Grundy County | 0 | 0 | 3,685 | 3 |
| Hamblen County | 0 | 0 | 9,426 | 4 |
| Hamilton County | 2,379 | 149 | 73,481 | 8 |
| Hancock County | 0 | 53 | 0 | 1 |
| Hardeman County | 0 | 1 | 628 | 5 |
| Hardin County | 0 | 0 | 4,395 | 4 |
| Hawkins County | 0 | 292 | 953 | 7 |
| Haywood County | 91 | 2 | 762 | 2 |
| Henderson County | 1 | 0 | 2,802 | 3 |
| Henry County | 0 | 0 | 0 | 5 |
| Hickman County | 0 | 254 | 4 | 3 |
| Houston County | 0 | 0 | 0 | 2 |
| Humphreys County | 0 | 1 | 673 | 3 |
| Jackson County | 0 | 0 | 953 | 5 |
| Jefferson County | 0 | 2,090 | 7,138 | 5 |
| Johnson County | 2 | 21 | 2,133 | 2 |
| Knox County | 0 | 0 | 4,988 | 6 |
| Lake County | 0 | 145 | 351 | 2 |
| Lauderdale County | 0 | 0 | 2,221 | 5 |
| Lawrence County | 0 | 0 | 0 | 7 |
| Lewis County | 0 | 2 | 0 | 1 |
| Lincoln County | 0 | 0 | 0 | 3 |
| Loudon County | 0 | 0 | 3,272 | 3 |
| Macon County | 0 | 617 | 0 | 2 |
| Madison County | 1 | 54 | 22,713 | 2 |
| Marion County | 0 | 28 | 6,232 | 5 |
| Marshall County | 5 | 547 | 4,621 | 3 |
| Maury County | 0 | 49 | 2,145 | 4 |
| McMinn County | 0 | 0 | 6,613 | 6 |
| McNairy County | 0 | 0 | 1,272 | 5 |
| Meigs County | 0 | 0 | 2,637 | 1 |
| Monroe County | 0 | 0 | 10,088 | 4 |
| Montgomery County | 0 | 3,284 | 45 | 6 |
| Moore County | 0 | 0 | 0 | 1 |
| Morgan County | 0 | 0 | 0 | 1 |
| Obion County | 0 | 1 | 0 | 7 |
| Overton County | 5 | 0 | 4,817 | 4 |
| Perry County | 0 | 0 | 0 | 2 |
| Pickett County | 0 | 0 | 0 | 1 |
| Polk County | 0 | 1 | 2 | 3 |
| Putnam County | 0 | 12 | 7,780 | 8 |
| Rhea County | 0 | 4,528 | 1,128 | 7 |
| Roane County | 0 | 132 | 1,113 | 7 |
| Robertson County | 0 | 0 | 0 | 3 |
| Rutherford County | 0 | 0 | 0 | 4 |
| Scott County | 0 | 0 | 0 | 2 |
| Sequatchie County | 0 | 0 | 1,160 | 3 |
| Sevier County | 0 | 0 | 1,363 | 7 |
| Shelby County | 17,022 | 532 | 167,548 | 6 |
| Smith County | 24 | 146 | 62 | 5 |
| Stewart County | 0 | 1 | 0 | 4 |
| Sullivan County | 0 | 141 | 38,487 | 8 |
| Sumner County | 0 | 1,499 | 21,559 | 6 |
| Tipton County | 0 | 0 | 2,183 | 7 |
| Trousdale County | 0 | 0 | 0 | 1 |
| Unicoi County | 0 | 0 | 0 | 2 |
| Union County | 0 | 88 | 0 | 2 |
| Van Buren County | 0 | 0 | 1,384 | 1 |
| Warren County | 0 | 0 | 7,424 | 3 |
| Washington County | 0 | 0 | 22,270 | 2 |
| Wayne County | 0 | 0 | 0 | 3 |
| Weakley County | 0 | 37 | 1,073 | 5 |
| White County | 0 | 79 | 4,757 | 5 |
| Williamson County | 0 | 0 | 0 | 7 |
| Wilson County | 0 | 1,885 | 13 | 7 |
Systems serving several counties are counted in each. Source: EPA SDWIS service line inventory, 2026 Q3.