Lead pipes by county in Indiana
Lead, galvanized and unknown service lines reported by the water systems serving each Indiana county.
| County | Lead | Galv. | Unknown | Systems |
|---|
| Adams County | 153 | 23 | 2,699 | 5 |
| Allen County | 11,761 | 475 | 1,515 | 10 |
| Bartholomew County | 0 | 0 | 5,042 | 4 |
| Benton County | 295 | 8 | 139 | 5 |
| Blackford County | 2 | 69 | 2,313 | 2 |
| Boone County | 85 | 27 | 4,197 | 5 |
| Brown County | 0 | 0 | 0 | 3 |
| Carroll County | 57 | 167 | 95 | 3 |
| Cass County | 289 | 710 | 3,130 | 4 |
| Clark County | 101 | 74 | 28,082 | 9 |
| Clay County | 0 | 774 | 892 | 5 |
| Clinton County | 0 | 2 | 201 | 4 |
| Crawford County | 0 | 17 | 891 | 5 |
| Daviess County | 0 | 14 | 7,756 | 4 |
| Dearborn County | 0 | 13 | 1,691 | 9 |
| Decatur County | 0 | 627 | 1,090 | 5 |
| Dekalb County | 468 | 57 | 1,206 | 5 |
| Delaware County | 169 | 175 | 21,024 | 6 |
| Dubois County | 21 | 8 | 7,792 | 9 |
| Elkhart County | 19,749 | 1,702 | 2,864 | 10 |
| Fayette County | 14 | 1 | 0 | 2 |
| Floyd County | 0 | 0 | 747 | 4 |
| Fountain County | 3 | 824 | 728 | 5 |
| Franklin County | 5 | 89 | 1,023 | 3 |
| Fulton County | 27 | 566 | 2,077 | 3 |
| Gibson County | 18 | 340 | 7,010 | 9 |
| Grant County | 3,094 | 213 | 2,076 | 7 |
| Greene County | 1 | 50 | 3,429 | 6 |
| Hamilton County | 38 | 169 | 2,330 | 6 |
| Hancock County | 0 | 710 | 1,482 | 3 |
| Harrison County | 0 | 0 | 1,950 | 6 |
| Hendricks County | 0 | 275 | 1,890 | 5 |
| Henry County | 6 | 346 | 8,817 | 6 |
| Howard County | 95 | 79 | 13,513 | 3 |
| Huntington County | 62 | 178 | 3,324 | 6 |
| Jackson County | 2 | 51 | 4,693 | 6 |
| Jasper County | 334 | 72 | 238 | 4 |
| Jay County | 243 | 30 | 414 | 4 |
| Jefferson County | 0 | 65 | 2,468 | 7 |
| Jennings County | 1 | 36 | 2,293 | 7 |
| Johnson County | 7 | 438 | 13,554 | 7 |
| Knox County | 1 | 226 | 9,027 | 9 |
| Kosciusko County | 24 | 296 | 5,929 | 11 |
| Lagrange County | 17 | 309 | 488 | 4 |
| Lake County | 35,067 | 3,595 | 81,830 | 21 |
| Laporte County | 546 | 172 | 346 | 12 |
| Lawrence County | 1 | 0 | 11,502 | 6 |
| Madison County | 721 | 565 | 2,727 | 10 |
| Marion County | 56,806 | 195 | 43,771 | 3 |
| Marshall County | 1 | 1,125 | 504 | 6 |
| Martin County | 2 | 29 | 1,641 | 5 |
| Miami County | 216 | 56 | 4,678 | 4 |
| Monroe County | 31 | 101 | 15,630 | 8 |
| Montgomery County | 13 | 342 | 4,008 | 8 |
| Morgan County | 7 | 64 | 7,501 | 10 |
| Newton County | 0 | 15 | 117 | 3 |
| Noble County | 1,874 | 447 | 1,046 | 5 |
| Ohio County | 0 | 0 | 0 | 2 |
| Orange County | 0 | 30 | 20 | 3 |
| Owen County | 0 | 0 | 389 | 2 |
| Parke County | 0 | 175 | 1,323 | 6 |
| Perry County | 15 | 147 | 2,230 | 5 |
| Pike County | 0 | 98 | 1,447 | 6 |
| Porter County | 501 | 24 | 1,481 | 6 |
| Posey County | 1 | 68 | 946 | 3 |
| Pulaski County | 9 | 88 | 1,035 | 1 |
| Putnam County | 2 | 57 | 1,526 | 8 |
| Randolph County | 154 | 32 | 1,680 | 5 |
| Ripley County | 10 | 46 | 3,435 | 8 |
| Rush County | 17 | 119 | 2,624 | 2 |
| Scott County | 4 | 52 | 8,525 | 2 |
| Shelby County | 19 | 61 | 3,004 | 2 |
| Spencer County | 7 | 11 | 4,576 | 6 |
| St. Joseph County | 30,963 | 1,957 | 15,204 | 7 |
| Starke County | 0 | 179 | 698 | 3 |
| Steuben County | 26 | 101 | 413 | 5 |
| Sullivan County | 3 | 6 | 2,772 | 8 |
| Switzerland County | 0 | 15 | 4 | 2 |
| Tippecanoe County | 2,614 | 22 | 698 | 6 |
| Tipton County | 0 | 281 | 1,755 | 3 |
| Union County | 0 | 0 | 0 | 1 |
| Vanderburgh County | 1 | 50 | 72,325 | 2 |
| Vermillion County | 1 | 159 | 2,614 | 9 |
| Vigo County | 1,205 | 148 | 23,520 | 7 |
| Wabash County | 40 | 228 | 4,059 | 5 |
| Warren County | 0 | 9 | 564 | 3 |
| Warrick County | 0 | 6 | 9,369 | 7 |
| Washington County | 0 | 0 | 403 | 4 |
| Wayne County | 372 | 56 | 11,081 | 5 |
| Wells County | 787 | 50 | 1,807 | 3 |
| White County | 4 | 73 | 2,081 | 4 |
| Whitley County | 248 | 144 | 1,676 | 4 |
Systems serving several counties are counted in each. Source: EPA SDWIS service line inventory, 2026 Q3.