Resident Population in Addison County, VT was 37.72000 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Addison County, VT reached a record high of 37.72000 in January of 2023 and a record low of 24.26600 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Addison County, VT - last updated from the United States Federal Reserve on May of 2024.