Resident Population in Leake County, MS was 21.25800 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Leake County, MS reached a record high of 23.73000 in January of 2010 and a record low of 17.08500 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Leake County, MS - last updated from the United States Federal Reserve on June of 2024.