WH

Water Hardness in North Kingstown, RI

Rhode Island · 1 zip codes · 8 matched water systems

70 PPM
4.1 GPG
Slightly Hard
0Soft60120180300+
Verified — Annual Water Quality Report

City avg (weighted): 57 PPM

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

System used for this reading
Kent County Water Authority
RI1559511
Water source: surface water
Serves: 88,779
USGS environmental estimate: 11 PPM
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
1 verified treated-water source
8 matched systems total for this city; treated-water reports are prioritized when available.
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 North Kingstown

These systems are matched to North Kingstown, RI. 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.
Kent County Water Authority
RI1559511
Slightly Hard
70 PPMsurface water88,779 servedVerified — Annual Water Quality Report
Source water: 11 PPM
Westerly Water Department
RI1559512
Soft
33 PPMgroundwater35,298 servedEstimated — Nearby Data
North Kingstown Town Of
RI1559517
Soft
52 PPMgroundwater27,732 servedHigh Confidence — USGS Monitoring
Veolia Water Wakefield Rhode Island Inc
RI1615624
Soft
52 PPMgroundwater22,347 servedEstimated — County Avg
University Of Rhode Island
RI1858422
Soft
52 PPMgroundwater19,354 servedHigh Confidence — USGS Monitoring
Showing the first 5 systems. Expand to review all matched systems.

Zip Codes in North Kingstown, RI

What This Means For You

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

Slightly Hard Water

Your water is slightly hard. You may notice minor spotting on dishes or a slight film on faucets. A water softener is optional but can improve water quality.

Recommended Products

Learn more: Do I Need a Water Softener? | Salt-Based vs Salt-Free | How to Test Your Water

Know your water hardness?

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

Submit Your Data

Frequently Asked Questions

How hard is the water in North Kingstown, RI?

The citywide weighted average water hardness in North Kingstown, RI is 57 PPM (3.3 GPG), classified as soft. This is based on 8 matched water systems. The gauge highlights Kent County Water Authority, a verified treated-water system, because individual systems can differ from the citywide average.

Do I need a water softener in North Kingstown, RI?

At 57 PPM, the citywide average is relatively soft. A water softener is generally not necessary.

Is hard water in North Kingstown, RI 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 North Kingstown, RI?

North Kingstown, Rhode Island is served by 8 matched water systems across 1 zip code.

Learn More About Your Water