WaterQ

City Water Quality Rankings in Massachusetts

281 cities ranked by drinking water quality.

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Popular city water quality comparisons

Northbridge, MA vs Westport, MA Compare → Eastham, MA vs Sandwich, MA Compare → Seekonk, MA vs Cotuit, MA Compare → Harwich, MA vs Mashpee, MA Compare →

Trending Cities

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#49
Newburyport
County, MA
90 A
#50
Orange
County, MA
90 A
#51
Raynham
County, MA
90 A
#52
Sharon
County, MA
90 A
#53
Tyngsborough
County, MA
90 A
#54
Weston
County, MA
90 A
#55
Wrentham
County, MA
90 A
#56
Bedford
County, MA
89 B
#57
Chelmsford
County, MA
89 B
#58
Mattapoisett
County, MA
89 B
#59
Reading
County, MA
89 B
#60
Andover
County, MA
88 B
#61
Carver
County, MA
88 B
#62
Groveland
County, MA
88 B
#63
Hancock
County, MA
88 B
#64
Pocasset
County, MA
88 B
#65
Sagamore Beach
County, MA
88 B
#66
Taunton
County, MA
88 B
#67
Wareham
County, MA
88 B
#68
West Brookfield
County, MA
88 B
#69
West Newbury
County, MA
88 B
#70
Westford
County, MA
88 B
#71
Lowell
County, MA
87 B
#72
Millbury
County, MA
87 B

Frequently Asked Questions

How are city water quality rankings calculated in Massachusetts?

WaterQ city rankings are based on EPA SDWIS data across local public water systems, including contaminant detections, compliance violations, and recency-weighted score signals.

Can I compare two cities in Massachusetts?

Yes. Use the city comparison links on this page or open the Compare tool to evaluate two cities side by side on score, grade, and water system coverage.

How often does WaterQ refresh city data?

City-level metrics refresh when new EPA data is processed. Check city pages for latest score and violation context.

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