Boise
Is Boise tap water safe to drink?
Generally acceptable, but review local hotspots — score 66/100. This report aggregates EPA drinking water data across 4 local systems in Boise. We found 715 total violations (459 unresolved).
Real-Time Environment
Live: 08:00 PM☀️ No active precipitation. Rainfall can impact surface water turbidity and pollutant runoff in Boise.
Water Quality Impact
🛡️ Home Water Treatment Needs
Should you invest in filtration or softening for your home in Boise?
Expert Advice
Given the safety margin, a Carbon Block or sediment filter is recommended to improve taste and remove trace particulates.
Buying a Filter?
Filter or no filter for Boise water? Here's what the data says.
Baby Formula Safety
What new parents in Boise should know about tap water safety.
Homebuyer's Perspective
Water quality is easy to overlook when evaluating a move to Boise, but it can affect plumbing longevity and appliance lifespan. With a score of 66/100, we recommend budgeting for high-quality point-of-entry filtration systems to protect your home's value.
Health & Family Safety
Residents should monitor Lead (90th percentile) levels. Pregnant women and families with young children should consult the specific EPA health goals listed below.
View Health Risk Glossary →Compliance Record for Boise
Based on EPA SDWIS violation records and contaminant test results for all water systems serving Boise.
Frequently Asked Questions
Is Boise tap water safe to drink?
Generally acceptable, but review local hotspots — score 66/100.
How many water systems serve Boise?
Boise is served by 4 public water systems in our latest EPA-backed dataset.
How can I check water quality for my exact address in Boise?
Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Boise.
What is the water quality score for Boise?
The water quality score for Boise is 66 out of 100, based on EPA contaminant data, violation history, and testing results across the 4 systems serving the city.
What are the top contaminants in Boise?
The top contaminants detected in Boise include Lead (90th percentile). View detailed information on our contaminants page.
Boise Water Quality Summary
Boise, ID receives a water quality score of 66/100 (Grade C) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 4 public water systems serving the area.
Boise's water quality is near the national average. While most systems meet EPA standards, some violations have been recorded. Residents may wish to review their specific water system's report for contaminant details.
Boise's score of 66 is 14 points below the Idaho state average of 80, and below the nationwide average of roughly 78/100 across all U.S. states.
As a large city nestled in Idaho's Mountain West region of agricultural valleys and forested mountains, Boise relies on multiple local water systems to deliver its tap water. Current residents and prospective homebuyers should be aware that the overall quality of these municipal supplies generally rates as average, indicating that there is room for improvement in overall water purity. Depending on which local system serves a specific property, the water characteristics may vary, making it beneficial to look closer at the specific source servicing your neighborhood.
Water quality data is sourced from the U.S. EPA SDWIS database and updated quarterly. Learn about our scoring methodology → Read our Idaho water quality rankings report →
Key Contaminants
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Water Systems Serving Boise (4)
Check Your Specific Address
Water quality can vary by neighborhood in Boise.
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