← All areas
Which California Areas Have the Most Lead Pipe Risk?
The 50 California areas with the highest share of confirmed lead service lines, out of 492 areas with enough data for a reliable estimate. Ranked by percentage, not raw count, so a small town with a real lead problem isn't buried under bigger cities with more addresses overall.
| # | Area | Lead | % of addresses |
|---|---|---|---|
| 1 | Chester | 1 | 0.1% |
| 2 | Oakdale | 3 | 0.0% |
| 3 | Adelanto | 0 | 0.0% |
| 4 | Alhambra | 0 | 0.0% |
| 5 | Altadena | 0 | 0.0% |
| 6 | Alturas | 0 | 0.0% |
| 7 | American Canyon | 0 | 0.0% |
| 8 | Anaheim | 0 | 0.0% |
| 9 | Anderson | 0 | 0.0% |
| 10 | Antioch | 0 | 0.0% |
| 11 | Apple Valley | 0 | 0.0% |
| 12 | Aptos | 0 | 0.0% |
| 13 | Arbuckle | 0 | 0.0% |
| 14 | Arcadia | 0 | 0.0% |
| 15 | Arcata | 0 | 0.0% |
| 16 | Armona | 0 | 0.0% |
| 17 | Arnold | 0 | 0.0% |
| 18 | Aromas | 0 | 0.0% |
| 19 | Arroyo Grande | 0 | 0.0% |
| 20 | Arvin | 0 | 0.0% |
| 21 | Atascadero | 0 | 0.0% |
| 22 | Atherton | 0 | 0.0% |
| 23 | Auburn | 0 | 0.0% |
| 24 | Avalon | 0 | 0.0% |
| 25 | Avenal | 0 | 0.0% |
| 26 | Avery | 0 | 0.0% |
| 27 | Azusa | 0 | 0.0% |
| 28 | Bakersfield | 0 | 0.0% |
| 29 | Baldwin Park | 0 | 0.0% |
| 30 | Banning | 0 | 0.0% |
| 31 | Barstow | 0 | 0.0% |
| 32 | Bass Lake | 0 | 0.0% |
| 33 | Bay Point | 0 | 0.0% |
| 34 | Beaumont | 0 | 0.0% |
| 35 | Bell Gardens | 0 | 0.0% |
| 36 | Bellflower | 0 | 0.0% |
| 37 | Belmont, Ca | 0 | 0.0% |
| 38 | Benicia | 0 | 0.0% |
| 39 | Bermuda Dunes | 0 | 0.0% |
| 40 | Beverly Hills | 0 | 0.0% |
| 41 | Big Bear City | 0 | 0.0% |
| 42 | Big Bear Lake | 0 | 0.0% |
| 43 | Bishop | 0 | 0.0% |
| 44 | Blythe | 0 | 0.0% |
| 45 | Bodega Bay | 0 | 0.0% |
| 46 | Boron | 0 | 0.0% |
| 47 | Borrego Springs | 0 | 0.0% |
| 48 | Boulder Creek | 0 | 0.0% |
| 49 | Bradley | 0 | 0.0% |
| 50 | Brawley | 0 | 0.0% |