Resident Population in Pottawatomie County, OK was 74.44600 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, Resident Population in Pottawatomie County, OK reached a record high of 74.44600 in January of 2024 and a record low of 43.13400 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Pottawatomie County, OK - last updated from the United States Federal Reserve on April of 2026.