City Water Quality Rankings in Massachusetts
281 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#97
Pepperell
County, MA
84 B
#98 Randolph
County, MA
84 B
#99 Southborough
County, MA
84 B
#100 Thorndike
County, MA
84 B
#101 Bolton
County, MA
83 B
#102 Concord
County, MA
83 B
#103 Wakefield
County, MA
83 B
#104 Athol
County, MA
82 B
#105 Beverly
County, MA
82 B
#106 Hingham
County, MA
82 B
#107 Hopedale
County, MA
82 B
#108 Marshfield
County, MA
82 B
#109 Monson
County, MA
82 B
#110 Winthrop
County, MA
82 B
#111 Norton
County, MA
81 B
#112 Uxbridge
County, MA
81 B
#113 Assonet
County, MA
80 B
#114 Clinton
County, MA
80 B
#115 Kingston
County, MA
80 B
#116 Lunenburg
County, MA
80 B
#117 Natick
County, MA
80 B
#118 New Bedford
County, MA
80 B
#119 Pembroke
County, MA
80 B
#120 Princeton
County, MA
80 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.