Illinois · population 19,960
Lead pipes in Lake Zurich, IL
26 lead or galvanized lines to replace
Most of Lake Zurich (population 19,960) gets its water from Lake Zurich. That system reported 24 lead and 2 galvanized-requiring-replacement service lines out of 6,885, with 28 more of unknown material.
0.4% of Lake Zurich's service lines are lead or galvanized requiring replacement, lower than the Illinois average (17%) and lower than the national average (3.1%).
- Lead 0.3%
- Galvanized (replace) <0.1%
- Unknown 0.4%
- Non-lead 99%
Latest lead test for Lake Zurich (Jul 2025–Dec 2025): 6.9 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 Lake Zurich.
Water systems serving Lake Zurich
| Water system | Lead | Galv. | Unknown | % lead |
|---|---|---|---|---|
| Lake ZurichMain system | 24 | 2 | 28 | 0.4% |
| Aqua Illinois-Hawthorn WoodsServes nearby areas | 0 | 0 | 65 | 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 Lake Zurich
The counts above cover the whole water system. To see whether your line is lead, look up your address on Lake Zurich'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
- Deer Park26 lead + galv. lines
- Kildeer26 lead + galv. lines
- North Barrington26 lead + galv. lines
- Hawthorn Woods65 unknown
- Barrington432 lead + galv. lines
- Long Groveno lead reported
- Tower Lakesno lead reported
- Lake Barringtonno lead reported
Check another water system
Questions
Does Lake Zurich, IL have lead pipes?
Yes. Lake Zurich, which serves Lake Zurich, reported 24 lead and 2 galvanized-requiring-replacement service lines, plus 28 of unknown material.
Who supplies water to Lake Zurich?
EPA's service area maps place most of Lake Zurich in Lake Zurich's service area (PWSID IL0970850). Aqua Illinois-Hawthorn Woods also serves parts of the city or nearby areas.
How do I check whether my Lake Zurich home has a lead service line?
Search your address on Lake Zurich'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 Lake Zurich 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 Lake Zurich whether your street is scheduled and whether it covers the private side.