WaterQ

City Water Quality Rankings in North Dakota

65 cities ranked by drinking water quality.

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Popular city water quality comparisons

Bismarck, ND vs Casselton, ND Compare → Fessenden, ND vs Fullerton, ND Compare → Gilby, ND vs Grand Forks, ND Compare → Mandan, ND vs Tioga, ND Compare →

Trending Cities

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#1
Bismarck
County, ND
100 A
#2
Casselton
County, ND
100 A
#3
Fessenden
County, ND
100 A
#4
Fullerton
County, ND
100 A
#5
Gilby
County, ND
100 A
#6
Grand Forks
County, ND
100 A
#7
Mandan
County, ND
100 A
#8
Tioga
County, ND
100 A
#9
Turtle Lake
County, ND
100 A
#10
Valley City
County, ND
100 A
#11
West Fargo
County, ND
100 A
#12
Garrison
County, ND
99 A
#13
Jamestown
County, ND
99 A
#14
Burlington
County, ND
98 A
#15
Grafton
County, ND
98 A
#16
Harvey
County, ND
98 A
#17
Hazen
County, ND
98 A
#18
Hillsboro
County, ND
98 A
#19
Kindred
County, ND
98 A
#20
Larimore
County, ND
98 A
#21
Minot
County, ND
98 A
#22
New Town
County, ND
98 A
#23
Park River
County, ND
98 A
#24
Stanley
County, ND
98 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.

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