Federal Way

Federal Way, WA receives a water quality score of 98/100 (Grade A) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 1 public water system serving the area.

Federal Way'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.

Federal Way's score of 98 is 3 points above the Washington state average of 95, and above the nationwide average of roughly 78/100 across all U.S. states.

Nestled in the Pacific Northwest near the Puget Sound coastline and forested mountains, Federal Way benefits from the region's generally clean source water. For residents and prospective homebuyers in this mid-size Washington city, the local water system delivers excellent quality that consistently aligns with outstanding safety standards. This high level of performance means households can expect reliable tap water with very little history of regulatory issues. Overall, the local supply provides peace of mind for families, showcasing how effectively the municipal infrastructure channels the area's natural environmental advantages.

Water quality data is sourced from the U.S. EPA SDWIS database and updated quarterly. Learn about our scoring methodology → Read our Washington water quality rankings report →