Resident Population in Rankin County, MS was 160.41700 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Rankin County, MS reached a record high of 160.41700 in January of 2023 and a record low of 43.93300 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Rankin County, MS - last updated from the United States Federal Reserve on May of 2024.