Resident Population in Skagit County, WA was 131.41700 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Skagit County, WA reached a record high of 131.41700 in January of 2023 and a record low of 52.38100 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Skagit County, WA - last updated from the United States Federal Reserve on May of 2024.