Resident Population in Portage County, OH was 162.66500 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Portage County, OH reached a record high of 162.66700 in January of 2015 and a record low of 125.86800 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Portage County, OH - last updated from the United States Federal Reserve on May of 2024.