Water Hardness in Rhode Island

5 counties — Average 455.4 PPM (Very Hard)

4
1
Soft (80.0%) Moderate (0.0%) Hard (0.0%) Very Hard (20.0%)

Rhode Island Water Hardness Map

Soft   Moderate   Hard   Very Hard

Hardest Water Counties

Bristol2179.6 PPM
Rhode Island

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All 5 Counties — By Water Hardness

CountyClassificationHardness
Bristol Very Hard 2179.6 PPM
Kent Soft 13.4 PPM
Newport Soft 43 PPM
Providence Soft 24.2 PPM
Washington Soft 17 PPM

Source: USGS Water Quality Portal

Frequently Asked Questions

How hard is the water in Rhode Island?

Rhode Island has an average water hardness of 455.4 PPM, classified as very hard. Out of 5 counties, 4 have soft water, 0 moderately hard, 0 hard, and 1 very hard.

Which Rhode Island counties have the hardest water?

Rhode Island has 1 counties with very hard water (above 180 mg/L). See the county table above for a complete breakdown by hardness level.

How do I check water hardness for my Rhode Island address?

Enter your ZIP code in the search box above to see your area's estimated water hardness, classification, and water utility information.