Lead pipes by county in Oklahoma
Lead, galvanized and unknown service lines reported by the water systems serving each Oklahoma county.
| County | Lead | Galv. | Unknown | Systems |
|---|
| Adair County | 0 | 1 | 4,736 | 7 |
| Alfalfa County | 64 | 34 | 829 | 5 |
| Atoka County | 0 | 15 | 2,010 | 5 |
| Beaver County | 0 | 0 | 185 | 3 |
| Beckham County | 9 | 8 | 20,072 | 7 |
| Blaine County | 3 | 7 | 1,309 | 6 |
| Bryan County | 0 | 236 | 4,285 | 8 |
| Caddo County | 5 | 226 | 5,767 | 12 |
| Canadian County | 0 | 2 | 7,592 | 9 |
| Carter County | 25 | 1 | 17,258 | 7 |
| Cherokee County | 1 | 18 | 11,287 | 17 |
| Choctaw County | 0 | 1 | 2,964 | 5 |
| Cimarron County | 0 | 6 | 169 | 2 |
| Cleveland County | 13 | 968 | 35,087 | 8 |
| Coal County | 0 | 96 | 790 | 2 |
| Comanche County | 1 | 937 | 26,349 | 14 |
| Cotton County | 4 | 1 | 469 | 4 |
| Craig County | 0 | 0 | 2,638 | 9 |
| Creek County | 10 | 65 | 12,762 | 14 |
| Custer County | 2 | 65 | 4,737 | 6 |
| Delaware County | 0 | 124 | 4,414 | 15 |
| Dewey County | 0 | 150 | 1,137 | 6 |
| Ellis County | 0 | 0 | 838 | 3 |
| Garfield County | 0 | 56 | 14,342 | 12 |
| Garvin County | 15 | 264 | 4,866 | 12 |
| Grady County | 0 | 94 | 2,530 | 9 |
| Grant County | 56 | 3 | 237 | 4 |
| Greer County | 0 | 129 | 1,620 | 4 |
| Harmon County | 1 | 19 | 1,000 | 3 |
| Harper County | 0 | 5 | 987 | 3 |
| Haskell County | 0 | 34 | 0 | 2 |
| Hughes County | 29 | 70 | 2,475 | 8 |
| Jackson County | 25 | 498 | 1,171 | 9 |
| Jefferson County | 0 | 0 | 354 | 4 |
| Johnston County | 1 | 50 | 1,658 | 7 |
| Kay County | 7 | 0 | 12,726 | 8 |
| Kingfisher County | 81 | 0 | 1,238 | 7 |
| Kiowa County | 0 | 15 | 2,839 | 7 |
| Latimer County | 2 | 0 | 1,458 | 4 |
| Le Flore County | 0 | 197 | 6,120 | 17 |
| Lincoln County | 0 | 1 | 2,212 | 7 |
| Logan County | 0 | 0 | 6,479 | 10 |
| Love County | 0 | 0 | 90 | 4 |
| Major County | 48 | 19 | 664 | 3 |
| Marshall County | 1 | 1 | 3,893 | 7 |
| Mayes County | 0 | 102 | 12,081 | 13 |
| McClain County | 0 | 3 | 5,373 | 8 |
| McCurtain County | 0 | 133 | 2,310 | 7 |
| McIntosh County | 16 | 3 | 2,006 | 9 |
| Murray County | 0 | 1,180 | 2,634 | 6 |
| Muskogee County | 3,726 | 18 | 7,970 | 15 |
| Noble County | 0 | 0 | 2,669 | 2 |
| Nowata County | 0 | 298 | 3,594 | 11 |
| Okfuskee County | 46 | 58 | 655 | 6 |
| Oklahoma County | 173 | 12 | 71,849 | 19 |
| Okmulgee County | 20 | 74 | 8,708 | 12 |
| Osage County | 1 | 562 | 5,811 | 17 |
| Ottawa County | 0 | 45 | 7,269 | 9 |
| Pawnee County | 10 | 586 | 1,934 | 9 |
| Payne County | 6 | 432 | 5,627 | 11 |
| Pittsburg County | 0 | 77 | 10,017 | 17 |
| Pontotoc County | 2 | 130 | 11,504 | 9 |
| Pottawatomie County | 20 | 191 | 2,167 | 9 |
| Pushmataha County | 0 | 39 | 2,215 | 3 |
| Roger Mills County | 0 | 26 | 818 | 3 |
| Rogers County | 0 | 22 | 12,349 | 13 |
| Seminole County | 2 | 136 | 2,090 | 8 |
| Sequoyah County | 1 | 19 | 4,576 | 12 |
| Stephens County | 0 | 0 | 11,795 | 5 |
| Texas County | 0 | 12 | 4,862 | 7 |
| Tillman County | 336 | 0 | 2,816 | 5 |
| Tulsa County | 0 | 353 | 149,624 | 12 |
| Wagoner County | 1 | 197 | 6,051 | 11 |
| Washington County | 0 | 4 | 16,800 | 8 |
| Washita County | 0 | 56 | 2,346 | 8 |
| Woods County | 89 | 262 | 2,768 | 4 |
| Woodward County | 1 | 21 | 4,760 | 4 |
Systems serving several counties are counted in each. Source: EPA SDWIS service line inventory, 2026 Q3.