Bismarck
Is Bismarck tap water safe to drink?
Mostly yes — Bismarck scores 100/100. This report aggregates EPA drinking water data across 1 local system in Bismarck. We found 0 total violations (0 unresolved).
Real-Time Environment
Live: 02:30 PM☀️ No active precipitation. Rainfall can impact surface water turbidity and pollutant runoff in Bismarck.
Water Quality Impact
🛡️ Home Water Treatment Needs
Should you invest in filtration or softening for your home in Bismarck?
Expert Advice
Your water quality is excellent. Standard filtration is optional but can further enhance taste.
Buying a Filter?
Filter or no filter for Bismarck water? Here's what the data says.
Baby Formula Safety
What new parents in Bismarck should know about tap water safety.
Homebuyer's Perspective
Water quality is easy to overlook when evaluating a move to Bismarck, but it can affect plumbing longevity and appliance lifespan. The high safety score (100/100) suggests lower risk for plumbing corrosion and appliance scaling.
Health & Family Safety
Residents should monitor Chloramine levels. Pregnant women and families with young children should consult the specific EPA health goals listed below.
View Health Risk Glossary →Compliance Record for Bismarck
Based on EPA SDWIS violation records and contaminant test results for all water systems serving Bismarck.
Frequently Asked Questions
Is Bismarck tap water safe to drink?
Mostly yes — Bismarck scores 100/100.
How many water systems serve Bismarck?
Bismarck is served by 1 public water system in our latest EPA-backed dataset.
How can I check water quality for my exact address in Bismarck?
Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Bismarck.
What is the water quality score for Bismarck?
The water quality score for Bismarck is 100 out of 100, based on EPA contaminant data, violation history, and testing results for all serving water systems.
What are the top contaminants in Bismarck?
The top contaminants detected in Bismarck include Chloramine, Tetrachloroethylene (PCE), Chlorine. View detailed information on our contaminants page.
Bismarck Water Quality Summary
Bismarck, ND receives a water quality score of 100/100 (Grade A) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 4 public water systems serving the area.
Bismarck's water quality is above the national average, with strong compliance records and low contaminant levels. Residents generally receive clean, safe tap water that meets EPA standards.
Bismarck's score of 100 is 7 points above the North Dakota state average of 93, and above the nationwide average of roughly 78/100 across all U.S. states.
Residents of this mid-size city in North Dakota can rely on tap water that achieves the highest possible marks for quality and compliance across all four of its local water systems. Despite being located in a Great Plains region characterized by agricultural production and Bakken oil and gas growth, Bismarck successfully maintains a perfect standard of water safety. For prospective homebuyers, this flawless performance offers peace of mind regarding the reliability and cleanliness of their household water supply.
Water quality data is sourced from the U.S. EPA SDWIS database and updated quarterly. Learn about our scoring methodology → Read our North Dakota water quality rankings report →
Key Contaminants
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Water Systems Serving Bismarck (1)
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Water quality can vary by neighborhood in Bismarck.
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