Resident Population in Monroe County, MS was 33.60900 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Monroe County, MS reached a record high of 38.01300 in January of 1999 and a record low of 33.57700 in January of 2022. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Monroe County, MS - last updated from the United States Federal Reserve on May of 2024.