Age-Adjusted Premature Death Rate for Sonoma County, CA was 279.70000 Rate per 100,000 in January of 2020, according to the United States Federal Reserve. Historically, Age-Adjusted Premature Death Rate for Sonoma County, CA reached a record high of 337.60000 in January of 1999 and a record low of 233.90000 in January of 2018. Trading Economics provides the current actual value, an historical data chart and related indicators for Age-Adjusted Premature Death Rate for Sonoma County, CA - last updated from the United States Federal Reserve on April of 2026.