Resident Population in Logan County, CO was 20.61900 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Logan County, CO reached a record high of 22.74900 in January of 2010 and a record low of 17.56400 in January of 1990. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Logan County, CO - last updated from the United States Federal Reserve on May of 2024.