Water Hardness Atlas ZIP / postcode

Is Massachusetts tap water hard or soft?

Mostly not. 0 % of the 13 cities with published data in Massachusetts have hard or very hard water (over 120 mg/L). The median is 1.9 gpg, from 0.7 gpg in Taunton to 5.4 gpg in Newburyport.

We have published hardness data for 13 cities in Massachusetts. The median is 1.9 gpg; the hardest water is in Newburyport (5.4 gpg), the softest in Taunton (0.7 gpg).

0 % of these cities have hard or very hard water (over 120 mg/L).

USGS classes: soft 0–60, moderately hard 61–120, hard 121–180, very hard >180 mg/L.

Cities in Massachusetts, hardest first

gpgmg/L
Newburyport5.492moderately hard
Woburn4.883moderately hard
Bridgewater4.781moderately hard
Cambridge4.272moderately hard
Braintree Town3.763moderately hard
Franklin Town3.255soft
Haverhill1.932soft
Worcester1.730soft
Quincy118soft
Boston0.813soft
Malden0.813soft
Somerville0.813soft
Taunton0.713soft

FAQ

Is Massachusetts water hard or soft?

Mostly not. 0 % of the 13 cities we cover have hard or very hard water; the median is 1.9 gpg.

Which city in Massachusetts has the hardest water?

Newburyport, at 5.4 gpg, has the hardest water of the 13 cities with published data.

Which city in Massachusetts has the softest water?

Taunton, at 0.7 gpg, has the softest water of the 13 cities with published data.

Do I need a water softener in Massachusetts?

Above about 120 mg/L (7 gpg) scale builds up in water heaters, kettles and dishwashers, and a softener or at least regular descaling pays off. Look up your own city in the table: in Massachusetts the values range from 0.7 gpg to 5.4 gpg.

On a private well? Well water hardness in Massachusetts by county →

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