860,018,600,486,011 · Groundwater and surface water
Flagstaff, AZ
Water Quality Data
Contaminant Levels
Values shown in respective units
Health Insights
- 1Flagstaff's water meets EPA standards. Filtration can still improve taste and peace of mind.
Current Score
Flagstaff tap water is sourced from Groundwater and surface water and treated by City of Flagstaff Water Services. Overall purity score: 85/100 (Excellent). Updated for 2026.
Need a Filter?
We've matched the best filters for Flagstaff's specific water issues.
View Best FilterRECOMMENDED SOLUTION FOR FLAGSTAFF
The Best Water Filter For Flagstaff Homes
Matched to local water issues and filtration standards.

Clearly Filtered Water Pitcher
Flagstaff water scores well overall. A pitcher filter provides extra precaution and improves taste for drinking and cooking.
- Removes residual chlorine taste and odor
- Filters trace contaminants and sediment
- No installation needed and ready to use immediately
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Want to know exactly what's in YOUR tap?
City reports show averages. Your home may be different — especially with older pipes.
Buy Test Kit on Amazon ($25–30)Frequently Asked Questions
Is Flagstaff AZ tap water safe to drink in 2026?
Does Flagstaff AZ use chlorine or chloramine for disinfection?
How hard is Flagstaff AZ water and what is the TDS level?
Has PFAS been found in Flagstaff AZ drinking water?
Nearby Water Quality Reports
Compare water quality reports across all 50 US states
Data Sources & Methodology
- EPA Safe Drinking Water Information System (SDWIS)
- EWG Tap Water Database
- City of Flagstaff Water Services Consumer Confidence Report (CCR)
- USGS regional water monitoring data
PurityMap compiles publicly available data and does not perform independent testing.
