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Water Hardness in Newport, WA

Washington · 1 zip codes · 8 matched water systems

168 PPM
9.8 GPG
Moderately Hard
0Soft60120180300+
Estimated — Nearby Data

Dataset updated March 9, 20268 matched water systems in the city rollupIndividual systems and ZIPs can differ. Methodology

Source context

How this city reading is built

This city reading is a weighted rollup across 8 matched water systems and 1 ZIP code. Citywide readings are useful for comparison, but individual utility zones and ZIPs can differ.

Source basis
8 estimated sources
This city reading needs local confirmation before equipment sizing or purchase decisions.
Water source profile
Primarily groundwater
Groundwater commonly picks up calcium and magnesium after contact with rock and soil. This profile is weighted by known population served across matched systems.
Data recency
March 9, 2026
Dataset rebuilt March 9, 2026; individual utility reporting years can vary.

Hardness is a mineral-content reading, not a drinking-water safety rating. Use it for scale, appliance, and softener decisions; check your utility report or test your tap before sizing treatment equipment. See how we calculate local readings.

Water Systems in Newport

These systems are matched to Newport, WA. Citywide readings are useful for comparison, but the system serving a specific address may differ from the city average.

8 water systems
PWSID is the public water system identifier. Data Source shows whether the hardness value comes from a treated-water report, USGS monitoring, or a local estimate; source year is shown when available.
Newport City Of
WA5359350
Hard
181 PPMgroundwater3,258 servedEstimated — Nearby Data
Diamond Lake Water & Sewer District
WA5319207
Hard
181 PPMgroundwater1,299 servedEstimated — Nearby Data
Metaline Falls Town Of
WA5354250
Slightly Hard
79 PPMsurface water593 servedEstimated — Nearby Data
River Bend Water System
WA5372752
Slightly Hard
79 PPMsurface water140 servedEstimated — Nearby Data
Sandy Shore & Sunnyside Meadows
WA5376145
Hard
181 PPMgroundwater83 servedEstimated — Nearby Data
Showing the first 5 systems. Expand to review all matched systems.

Zip Codes in Newport, WA

What This Means For You

Recommendations are based on the displayed hardness reading. Confirm your tap reading before sizing or buying treatment equipment.

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If you've tested your water or have your utility's CCR report, share your reading to help us improve accuracy for Newport, WA.

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Frequently Asked Questions

How hard is the water in Newport, WA?

The citywide weighted average water hardness in Newport, WA is 168 PPM (9.8 GPG), classified as moderately hard. This is based on 8 matched water systems.

Do I need a water softener in Newport, WA?

With a citywide average hardness of 168 PPM, a water softener is worth considering for homes in Newport. Confirm your tap reading before sizing equipment.

Is hard water in Newport, WA safe to drink?

Water hardness itself is a mineral-content reading, not a drinking-water safety rating. Calcium and magnesium are naturally occurring minerals, but you should check your utility's Consumer Confidence Report for contaminant and compliance information.

How many water systems serve Newport, WA?

Newport, Washington is served by 8 matched water systems across 1 zip code.

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