Residential property prices in King and Snohomish counties declined year-over-year in April 2026, with King County's median price dropping 5.3% to $859,000 and Snohomish County's slightly falling to $750,000. Housing inventory surged, with Snohomish listings up 58% and overall inventory rising 28.4%, while closed sales fell 3.7%. High mortgage rates and economic uncertainty contributed to weak demand. Pierce County saw a 4.5% price increase, and statewide median prices remained flat at $650,000.