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City water profile

Layton water quality

Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for Layton, Utah.

Median indexed hardness

477PPM

2 indexed ZIPs

Range 477–477 PPM

State comparison
113 PPM above
State hardness rank
#13 of 55
Matched utilities
1
Active health records
0

City summary

What the indexed records say

Layton has 2 published ZIP profiles across Davis County. The indexed median is 477 PPM, compared with 364 PPM across Utah.

Among the 55 Utahcities with an indexed median, Layton ranks #13from highest to lowest. Across all 66 state ZIP profiles, available estimates run from 257to 686.5 PPM.

The 477–477 PPM range shows how much the available ZIP estimates vary within the city label.

Hardness distribution

How local ZIP estimates compare

Soft0 ZIPs
Moderately hard0 ZIPs
Hard0 ZIPs
Very hard2 ZIPs

2 of 2 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.

Evidence quality

Distance, dates, and confidence

Median nearest distance
16.4 miles
Profiles with evidence
2/2

Confidence labels

High: 0Moderate: 2Low: 0

Observation window: Jan 12, 2016 to Jun 2, 2026.

ZIP directory

Water reports in Layton

Open a ZIP for site-level provenance and measurements.

ZIP code

84040

Very Hard

477 PPM

Nearest site
16.4 mi
Confidence
Moderate

View full ZIP evidence →

ZIP code

84041

Very Hard

477 PPM

Nearest site
13 mi
Confidence
Moderate

View full ZIP evidence →

Public water systems

Utilities associated with this city

Layton City Water System

PWSID UTAH06018

Surface water
System population served
82,000
Last reported
Jun 17, 2026

A municipal system, in-state city, and served county all agree with this Census ZCTA.

Compliance history

What EPA records show

No active health-based violation appears among the associated systems in the represented EPA reporting quarter. This does not mean every contaminant was tested at every tap.

No violation records are included in the current lookback window.

Practical next steps

Move from index to evidence

  1. 1. Open your ZIP. Check distance, dates, confidence, and the associated utility.
  2. 2. Read the current CCR. Confirm source water, detections, limits, ranges, and notices.
  3. 3. Test the tap when needed. Confirm health concerns or treatment sizing with the right method.

Questions people ask

About water in Layton

Is the water hard?

The indexed city median is 477 PPM. Open the ZIP report to verify the distance and confidence behind that estimate.

Is the tap water safe?

Compliance history is utility-wide and cannot guarantee conditions at every tap. Check current notices and test when address-specific evidence is needed.

Do I need treatment?

Choose treatment only after confirming the problem at the property. A softener targets hardness; contaminant treatment requires a matching, verified performance claim.