Lead pipes by county in New Mexico
Lead, galvanized and unknown service lines reported by the water systems serving each New Mexico county.
| County | Lead | Galv. | Unknown | Systems |
|---|---|---|---|---|
| Bernalillo County | 3 | 22 | 177,424 | 15 |
| Catron County | 0 | 0 | 315 | 4 |
| Chaves County | 0 | 0 | 91 | 6 |
| Cibola County | 0 | 0 | 1,637 | 6 |
| Colfax County | 1 | 0 | 2,173 | 10 |
| Curry County | 1 | 0 | 7,617 | 4 |
| De Baca County | 0 | 0 | 228 | 2 |
| Dona Ana County | 1 | 0 | 34,941 | 26 |
| Eddy County | 0 | 1 | 15,664 | 8 |
| Grant County | 0 | 0 | 1,093 | 9 |
| Guadalupe County | 0 | 0 | 362 | 2 |
| Harding County | 0 | 0 | 41 | 1 |
| Hidalgo County | 0 | 0 | 1,221 | 3 |
| Lea County | 4 | 169 | 4,620 | 9 |
| Lincoln County | 0 | 0 | 2,081 | 14 |
| Luna County | 0 | 0 | 6,669 | 3 |
| McKinley County | 0 | 0 | 7,646 | 8 |
| Mora County | 1 | 0 | 911 | 10 |
| Otero County | 0 | 1 | 3,710 | 19 |
| Quay County | 0 | 0 | 4,182 | 3 |
| Rio Arriba County | 0 | 1 | 5,994 | 18 |
| Roosevelt County | 0 | 0 | 4,493 | 4 |
| San Juan County | 0 | 1 | 11,396 | 12 |
| San Miguel County | 0 | 34 | 9,891 | 17 |
| Sandoval County | 3 | 7 | 6,998 | 21 |
| Santa Fe County | 0 | 0 | 6,479 | 18 |
| Sierra County | 1 | 22 | 66 | 5 |
| Socorro County | 0 | 0 | 4,470 | 5 |
| Taos County | 7 | 50 | 2,329 | 18 |
| Torrance County | 1 | 0 | 1,781 | 13 |
| Union County | 0 | 0 | 1,455 | 1 |
| Valencia County | 0 | 0 | 5,842 | 9 |
Systems serving several counties are counted in each. Source: EPA SDWIS service line inventory, 2026 Q3.