Resident Population in Ashtabula County, OH was 96.84500 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Ashtabula County, OH reached a record high of 104.21500 in January of 1980 and a record low of 96.84500 in January of 2023. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Ashtabula County, OH - last updated from the United States Federal Reserve on May of 2024.