City Water Quality Rankings in Massachusetts
281 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#25
Boston
County, MA
93 A
#26 Stoneham
County, MA
93 A
#27 Brookfield
County, MA
92 A
#28 Byfield
County, MA
92 A
#29 Framingham
County, MA
92 A
#30 Lanesborough
County, MA
92 A
#31 Mansfield
County, MA
92 A
#32 Millis
County, MA
92 A
#33 North Brookfield
County, MA
92 A
#34 Quincy
County, MA
92 A
#35 North Chelmsford
County, MA
91 A
#36 Acushnet
County, MA
90 A
#37 Avon
County, MA
90 A
#38 Bourne
County, MA
90 A
#39 Brookline
County, MA
90 A
#40 Chicopee
County, MA
90 A
#41 Cohasset
County, MA
90 A
#42 Everett
County, MA
90 A
#43 Foxborough
County, MA
90 A
#44 Hatfield
County, MA
90 A
#45 Hopkinton
County, MA
90 A
#46 Lakeville
County, MA
90 A
#47 Lexington
County, MA
90 A
#48 Methuen
County, MA
90 A
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.