Best Tap Water in US Cities
All 40 cities on TapWaterGuide meet EPA Safe Drinking Water Act standards. This ranking highlights cities whose water is exceptional by source quality — several draw from protected watersheds so clean they're exempt from full filtration requirements, a distinction held by only a handful of U.S. systems.
Top Tier — Exceptional Source Water
1. New York City, New York
Safe
2. San Francisco, California
Safe
3. Seattle, Washington
Safe
4. Portland, Oregon
Safe
5. Boston, Massachusetts
Safe
6. Memphis, Tennessee
Safe
7. Denver, Colorado
Safe
8. Salt Lake City, Utah
Safe
All Other Cities (All EPA-Compliant)
Albuquerque, New Mexico
Safe
Atlanta, Georgia
Safe
Austin, Texas
Safe
Baltimore, Maryland
Safe
Charlotte, North Carolina
Safe
Chicago, Illinois
Safe
Columbus, Ohio
Safe
Dallas, Texas
Safe
Detroit, Michigan
Safe
Houston, Texas
Safe
Indianapolis, Indiana
Safe
Jacksonville, Florida
Safe
Las Vegas, Nevada
Safe
Los Angeles, California
Safe
Louisville, Kentucky
Safe
Miami, Florida
Safe
Milwaukee, Wisconsin
Safe
Minneapolis, Minnesota
Safe
Nashville, Tennessee
Safe
New Orleans, Louisiana
Generally Safe
Oklahoma City, Oklahoma
Safe
Orlando, Florida
Safe
Philadelphia, Pennsylvania
Safe
Phoenix, Arizona
Safe
Pittsburgh, Pennsylvania
Generally Safe
Raleigh, North Carolina
Safe
Sacramento, California
Safe
San Antonio, Texas
Safe
San Diego, California
Safe
St Louis, Missouri
Safe
Tampa, Florida
Safe
Tucson, Arizona
Safe