Premature Death Rate for King County, WA was 290.80000 Rate per 100,000 in January of 2020, according to the United States Federal Reserve. Historically, Premature Death Rate for King County, WA reached a record high of 295.20000 in January of 1999 and a record low of 256.50000 in January of 2010. Trading Economics provides the current actual value, an historical data chart and related indicators for Premature Death Rate for King County, WA - last updated from the United States Federal Reserve on May of 2024.