North Dakota Water Quality Report
Tap water quality data for 1 cities in North Dakota, updated 2026.
US average: 100 ppm
1 of 1 cities violation-free
1 cities tested
1 water systems tracked
Cleanest Tap Water in North Dakota
Cities with the fewest water quality issues
No cities in North Dakota have recorded water quality violations in the past 3 years.
North Dakota Tap Water: What You Need to Know
North Dakota has 1 tracked water utilities serving approximately 121K residents. The average water hardness is 456 ppm (26.7 GPG), classified as Very Hard — above the national average of 100 ppm. Hardness ranges from 456 ppm in Fargo to 456 ppm in Fargo.
No cities in North Dakota have recorded water quality violations in the past 3 years — an excellent compliance record. All 1 tested cities have lead levels below the EPA action level of 15 ppb.
With very hard water on average, many North Dakota residents may notice mineral buildup on fixtures, dry skin, or stiff-feeling hair. A shower filter for hard water can help reduce chlorine exposure, while a water softener addresses the mineral buildup directly.
Frequently Asked Questions About North Dakota Water
Is tap water safe to drink in North Dakota?
Based on available EPA data, no cities in North Dakota have recorded water quality violations in the past 3 years. However, water quality can vary by building — older homes may have lead pipes. Consider testing your water at home for complete peace of mind.
How hard is the water in North Dakota?
North Dakota's average water hardness is 456 ppm (26.7 GPG), classified as Very Hard. This is above the national average of 100 ppm. Hardness varies significantly by city — use our Water Hardness Calculator to check your specific area.
Which city in North Dakota has the cleanest tap water?
Based on EPA violation data, lead testing, and water quality metrics, Fargo ranks as having the cleanest tap water in North Dakota. It has zero violations in the past 3 years and lead levels well below the EPA action level.
Where does North Dakota get its water from?
The majority of North Dakota's water systems (100%) use surface water as their primary source. Surface water comes from rivers, lakes, and reservoirs. Each city's specific source can vary — check individual city reports for details.
All 1 Cities
Sorted by population served