Resident Population in Somerset County, MD was 24.91000 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Somerset County, MD reached a record high of 26.46400 in January of 2010 and a record low of 18.86600 in January of 1981. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Somerset County, MD - last updated from the United States Federal Reserve on May of 2024.