WATER SUPPLIER
Zion's published water source
Lake Michigan; the City of Zion purchases all of its water from Lake County Public Water District (LCPWD).
Source: Water Quality Report for the Reporting Year of 2025 (2025)
Zion Water Treatment
Water Softener and Filtration in Zion, IL
The latest Water Quality Report for the Reporting Year of 2025 says Zion's public water system met the standards described in that report. A utility report describes the public system. It is not a reading from one home's tap, where plumbing, fixtures, sample location, and existing treatment can change the experience.
Call for Zion serviceRequest your Zion water consultation
LOCAL WATER NUMBERS
What Zion's report lists
- The report states that Zion customers receive an abundant water supply from Lake Michigan and that the City purchases all of its water from Lake County Public Water District (LCPWD).
- The annual report is a snapshot of water quality covering testing performed from January 1 through December 31, 2025.
This report does not publish a hardness figure. Ask us to test your water instead of using a guessed number.
This Consumer Confidence Report describes the municipal water system and reported sampling results. It does not determine water conditions at an individual home, which can be affected by building plumbing, service-line material, fixtures, and local conditions.
Source: Water Quality Report for the Reporting Year of 2025 (2025)
HOMES IN THIS AREA
Zion's housing age context
The 2020-2024 ACS estimate puts the median year built for Zion housing units at 1971, a late twentieth-century housing era. That is context for discussing plumbing access, fixture age, and updates at a specific address, not a condition report for any one home.
MORE LOCAL SERVICE AREAS
Nearby towns we serve
Back to all service areasTreatment Options
Whole-home and kitchen drinking-water options
We match the approach to your home, goals, plumbing, and available space—not to a one-size-fits-all assumption about Zion water.
- Whole-home water softeners for homes seeking a softening solution.
- Whole-home carbon filtration for homeowners who want carbon-filtration options.
- Salt-free conditioning where it fits the home and the homeowner’s goals.
- Well-water treatment only after laboratory results or a confirmed field test.
- Kitchen tank or tankless reverse osmosis, available only as an add-on to a whole-home installation.
Local Questions
Zion water-treatment FAQs
Town FAQ source: Water Quality Report for the Reporting Year of 2025 (2025)
Where does Zion municipal water come from?
Zion’s 2025 Water Quality Report identifies Lake Michigan as the source and says the City purchases all of its water from Lake County Public Water District (LCPWD).
What period does Zion’s latest water report cover?
The City’s 2025 report says it is a snapshot of water quality and testing performed from January 1 through December 31, 2025.
Does Zion’s report tell me what is happening at my faucet?
Not by itself. The report describes the municipal system and reported sampling; conditions at a Zion home can also be affected by its plumbing, service-line material, fixtures, and local conditions.
Can I add reverse osmosis for drinking water in my Zion kitchen?
Yes, kitchen tank or tankless reverse osmosis can be included only as an add-on when we install a whole-home system. We will review placement and installation details for your Zion home.
Request your Zion water consultation
Not sure what your home needs?
Get a no-pressure water review.