Pennsylvania · population 127,138
Lead pipes in Allentown, PA
10,391 lead or galvanized lines to replace
Most of Allentown (population 127,138) gets its water from Lca Allentown Division. That system reported 4,552 lead and 5,839 galvanized-requiring-replacement service lines out of 31,999, with 20,894 more of unknown material.
32% of Lca Allentown Division's service lines are lead or galvanized requiring replacement, higher than the Pennsylvania average (2.9%) and higher than the national average (3.1%).
- Lead 14%
- Galvanized (replace) 18%
- Unknown 65%
- Non-lead 2.2%
Latest lead test for Lca Allentown Division (Jun 2025–Sep 2025): 7 ppb at the 90th percentile, against a 15 ppb federal action level. Full test history.
Compliance record: EPA lists no Lead and Copper Rule violations since 2015 for Lca Allentown Division.
Water systems serving Allentown
| Water system | Lead | Galv. | Unknown | % lead |
|---|---|---|---|---|
| Lca Allentown DivisionMain system | 4,552 | 5,839 | 20,894 | 32% |
| Salisbury TWP Water SystemServes nearby areas | 0 | 0 | 3,314 | 0% |
Matched from EPA water system service area boundaries and the cities each system reports serving. Edges of the city may be served by a neighboring system; your water bill names your utility.
Check your address in Allentown
The counts above cover the whole water system. To see whether your line is lead, look up your address on Lca Allentown Division's official inventory. Utilities had to make these public by October 16, 2024.
No map yet? Do the 2-minute scratch and magnet test.
Protect your drinking water
If your line is lead, galvanized or unknown, use a filter certified to NSF/ANSI 53 for lead for drinking, cooking and baby formula, and use only cold water.
Choosing a lead-certified filter · Testing your water · Replacement cost
Nearby cities
- Emmaus550 lead + galv. lines
- Catasauqua29 lead + galv. lines
- Fountain Hill777 lead + galv. lines
- North Catasauqua1,510 lead + galv. lines
- Coplay1,510 lead + galv. lines
- Bethlehem777 lead + galv. lines
- Northampton1,510 lead + galv. lines
- Macungie9 lead + galv. lines
Check another water system
Questions
Does Allentown, PA have lead pipes?
Yes. Lca Allentown Division, which serves Allentown, reported 4,552 lead and 5,839 galvanized-requiring-replacement service lines, plus 20,894 of unknown material.
Who supplies water to Allentown?
EPA's service area maps place most of Allentown in Lca Allentown Division's service area (PWSID PA3390024). Salisbury TWP Water System also serves parts of the city or nearby areas.
How do I check whether my Allentown home has a lead service line?
Search your address on Lca Allentown Division's service line inventory map. You can also scratch the pipe where water enters your home: lead is soft, dull gray, scratches to shiny silver and doesn't attract a magnet.
When will lead pipes in Allentown be replaced?
EPA's Lead and Copper Rule Improvements require most systems to replace lead and galvanized-requiring-replacement lines by December 31, 2037. Ask Lca Allentown Division whether your street is scheduled and whether it covers the private side.