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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#145
Bondsville
County, MA
76 B
#146
Canton
County, MA
76 B
#147
Deerfield
County, MA
76 B
#148
East Brookfield
County, MA
76 B
#149
Gilbertville
County, MA
76 B
#150
Littleton
County, MA
76 B
#151
Medfield
County, MA
76 B
#152
Medway
County, MA
76 B
#153
Merrimac
County, MA
76 B
#154
Parkwood Beach
County, MA
76 B
#155
Somerville
County, MA
76 B
#156
Sturbridge
County, MA
76 B
#157
West Yarmouth
County, MA
76 B
#158
Woburn
County, MA
76 B
#159
Brewster
County, MA
75 B
#160
South Hadley
County, MA
75 B
#161
Lynn
County, MA
74 C
#162
Marion
County, MA
74 C
#163
Norwell
County, MA
74 C
#164
Sutton
County, MA
74 C
#165
Tewksbury
County, MA
74 C
#166
Ashburnham
County, MA
73 C
#167
Holbrook
County, MA
73 C
#168
Lincoln
County, MA
73 C

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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