WaterQ

City Water Quality Rankings in Maine

75 cities ranked by drinking water quality.

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Popular city water quality comparisons

Bridgton, ME vs East Millinocket, ME Compare → Hallowell, ME vs Hampden, ME Compare → Machias, ME vs Madawaska, ME Compare → Norway, ME vs Old Town, ME Compare →

Trending Cities

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#1
Bridgton
County, ME
100 A
#2
East Millinocket
County, ME
100 A
#3
Hallowell
County, ME
100 A
#4
Hampden
County, ME
100 A
#5
Machias
County, ME
100 A
#6
Madawaska
County, ME
100 A
#7
Norway
County, ME
100 A
#8
Old Town
County, ME
100 A
#9
South Paris
County, ME
100 A
#10
Topsham
County, ME
100 A
#11
Winthrop
County, ME
100 A
#12
York
County, ME
100 A
#13
Bar Harbor
County, ME
98 A
#14
Brewer
County, ME
98 A
#15
Dover-Foxcroft
County, ME
98 A
#16
Houlton
County, ME
98 A
#17
Mexico
County, ME
98 A
#18
Presque Isle
County, ME
98 A
#19
Sanford
County, ME
98 A
#20
Searsport
County, ME
98 A
#21
North Waterboro
County, ME
97 A
#22
Dexter
County, ME
96 A
#23
Gardiner
County, ME
96 A
#24
Lewiston
County, ME
96 A

Frequently Asked Questions

How are city water quality rankings calculated in Maine?

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 Maine?

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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