City Water Quality Rankings in Maine
72 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#49
Bangor
County, ME
88 B
#50 Farmington
County, ME
88 B
#51 Norridgewock
County, ME
88 B
#52 Poland
County, ME
88 B
#53 Yarmouth
County, ME
88 B
#54 Eastport
County, ME
86 B
#55 Fort Kent
County, ME
86 B
#56 Howland
County, ME
86 B
#57 Fort Fairfield
County, ME
85 B
#58 Sangerville
County, ME
85 B
#59 Dixfield
County, ME
84 B
#60 Southwest Harbor
County, ME
84 B
#61 Winterport
County, ME
82 B
#62 Lisbon
County, ME
79 B
#63 Lubec
County, ME
78 B
#64 Milo
County, ME
76 B
#65 Waterville
County, ME
74 C
#66 Northeast Harbor
County, ME
62 C
#67 Gray
County, ME
52 D
#68 Jackman
County, ME
50 D
#69 Mars Hill
County, ME
35 F
#70 Carrabassett Valley
County, ME
30 F
#71 North Berwick
County, ME
16 F
#72 Ellsworth
County, ME
2 F
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.