WaterQ

City Water Quality Rankings in North Dakota

66 cities ranked by drinking water quality.

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Popular city water quality comparisons

Bismarck, ND vs Casselton, ND Compare → Gilby, ND vs Grand Forks, ND Compare → Mandan, ND vs Parshall, ND Compare → Tioga, ND vs Turtle Lake, ND Compare →

Trending Cities

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#1
Bismarck
County, ND
100 A
#2
Casselton
County, ND
100 A
#3
Gilby
County, ND
100 A
#4
Grand Forks
County, ND
100 A
#5
Mandan
County, ND
100 A
#6
Parshall
County, ND
100 A
#7
Tioga
County, ND
100 A
#8
Turtle Lake
County, ND
100 A
#9
Valley City
County, ND
100 A
#10
West Fargo
County, ND
100 A
#11
Garrison
County, ND
99 A
#12
Burlington
County, ND
98 A
#13
Grafton
County, ND
98 A
#14
Harvey
County, ND
98 A
#15
Hillsboro
County, ND
98 A
#16
Jamestown
County, ND
98 A
#17
Larimore
County, ND
98 A
#18
Minot
County, ND
98 A
#19
Park River
County, ND
98 A
#20
Stanley
County, ND
98 A
#21
Velva
County, ND
98 A
#22
Washburn
County, ND
98 A
#23
Kindred
County, ND
97 A
#24
Rolla
County, ND
97 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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