City Water Quality Rankings in North Dakota
65 cities ranked by drinking water quality.
Popular city water quality comparisons
Trending Cities
#25
Velva
County, ND
98 A
#26 Washburn
County, ND
98 A
#27 Rolla
County, ND
97 A
#28 Watford City
County, ND
97 A
#29 Carrington
County, ND
96 A
#30 Mantador
County, ND
96 A
#31 St. Michael
County, ND
96 A
#32 Dickinson
County, ND
95 A
#33 Kenmare
County, ND
95 A
#34 Belfield
County, ND
94 A
#35 Beulah
County, ND
94 A
#36 Devils Lake
County, ND
94 A
#37 Langdon
County, ND
94 A
#38 Mapleton
County, ND
94 A
#39 Ray
County, ND
94 A
#40 Wahpeton
County, ND
94 A
#41 Cavalier
County, ND
93 A
#42 Lisbon
County, ND
93 A
#43 Finley
County, ND
92 A
#44 Hettinger
County, ND
92 A
#45 Surrey
County, ND
92 A
#46 Bowman
County, ND
90 A
#47 Fargo
County, ND
90 A
#48 Linton
County, ND
90 A
Frequently Asked Questions
How are city water quality rankings calculated in North Dakota?
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 North Dakota?
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.