Resident Population in Carroll County, OH was 26.75800 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Carroll County, OH reached a record high of 29.18900 in January of 2003 and a record low of 21.57900 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Carroll County, OH - last updated from the United States Federal Reserve on May of 2024.