Is Your Tap Water Safe to Drink?
Search water quality reports for 11,157+ US cities. Get instant access to contaminant test results and certified filter recommendations.
✓ Over 50,000 water systems tested • Updated from EPA and local utilities
Explore Tap Water Quality by Category
Browse by state, search contaminants, compare water filters, and learn about EPA standards
Check Tap Water Quality by City
View detailed tap water quality reports for major cities across the United States
New York, NY
8.3M people served
Los Angeles, CA
3.9M people served
Chicago, IL
2.7M people served
Houston, TX
2.2M people served
Phoenix, AZ
1.7M people served
Philadelphia, PA
1.6M people served
EPA-Certified Laboratory Testing
Professional home water testing provides accurate analysis of your drinking water. Mail-in kits with EPA-certified lab results in 7-10 days.
SimpleLab
Standard Home Water Test
$232
Comprehensive water analysis testing over 200 contaminants including bacteria, heavy metals, and chemical compounds.
Tap Score
PFAS Forever Chemicals Test
$239
Specialized test for PFOA, PFOS, and 24 other forever chemicals. Essential for areas near military bases, airports, or industrial sites.
Tap Score
Volatile Organic Compounds (VOC) Test
$139
Detects volatile organic compounds including industrial solvents, fuels, and chemical contaminants.
11,157 Cities
Comprehensive coverage
EPA Verified
Official EPA data source
NSF Certified
Filter recommendations
EWG Standards
Health-based guidelines