Resident Population in Tishomingo County, MS was 18.50700 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Tishomingo County, MS reached a record high of 19.63400 in January of 2011 and a record low of 14.94000 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Tishomingo County, MS - last updated from the United States Federal Reserve on May of 2024.