Resident Population in Monroe County, AL was 19.05700 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, Resident Population in Monroe County, AL reached a record high of 24.80200 in January of 1995 and a record low of 19.05700 in January of 2024. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Monroe County, AL - last updated from the United States Federal Reserve on April of 2026.