Resident Population in Randolph County, IN was 24.33700 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, Resident Population in Randolph County, IN reached a record high of 30.20000 in January of 1977 and a record low of 24.33700 in January of 2024. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Randolph County, IN - last updated from the United States Federal Reserve on April of 2026.