Resident Population in Ripley County, IN was 29.43400 Thous. of Persons in January of 2025, according to the United States Federal Reserve. Historically, Resident Population in Ripley County, IN reached a record high of 29.43400 in January of 2025 and a record low of 21.13800 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Ripley County, IN - last updated from the United States Federal Reserve on May of 2026.