Resident Population in Chesterfield County, SC was 44.03100 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Chesterfield County, SC reached a record high of 46.61200 in January of 2010 and a record low of 33.66700 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Chesterfield County, SC - last updated from the United States Federal Reserve on May of 2024.