Illinois · population 24,583
Lead pipes in Zion, IL
41 lead or galvanized lines to replace
Most of Zion (population 24,583) gets its water from Zion. That system reported 25 lead and 16 galvanized-requiring-replacement service lines out of 7,076, with 0 more of unknown material.
0.6% of Zion's service lines are lead or galvanized requiring replacement, lower than the Illinois average (17%) and lower than the national average (3.1%).
- Lead 0.4%
- Galvanized (replace) 0.2%
- Unknown 0%
- Non-lead 99%
Latest lead test for Zion (Jan 2026–Jun 2026): 11.2 ppb at the 90th percentile, against a 15 ppb federal action level. Full test history.
Compliance record: EPA lists 1 Lead and Copper Rule violation since 2015 for Zion.
Water systems serving Zion
| Water system | Lead | Galv. | Unknown | % lead |
|---|---|---|---|---|
| ZionMain system | 25 | 16 | 0 | 0.6% |
| Winthrop HarborServes nearby areas | 13 | 0 | 804 | 0.6% |
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 Zion
The counts above cover the whole water system. To see whether your line is lead, look up your address on Zion'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
- Beach Parkno lead reported
- Winthrop Harbor13 lead + galv. lines
- Wadsworth7,322 lead + galv. lines
- Waukegan7,322 lead + galv. lines
- Gurneeno lead reported
- Parkno lead reported
- Lindenhurst439 unknown
- North Chicago849 lead + galv. lines
Check another water system
Questions
Does Zion, IL have lead pipes?
Yes. Zion, which serves Zion, reported 25 lead and 16 galvanized-requiring-replacement service lines, plus 0 of unknown material.
Who supplies water to Zion?
EPA's service area maps place most of Zion in Zion's service area (PWSID IL0972000). Winthrop Harbor also serves parts of the city or nearby areas.
How do I check whether my Zion home has a lead service line?
Search your address on Zion'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 Zion 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 Zion whether your street is scheduled and whether it covers the private side.