Resident Population in Pottawatomie County, KS was 26.38200 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Pottawatomie County, KS reached a record high of 26.38200 in January of 2023 and a record low of 11.75500 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Pottawatomie County, KS - last updated from the United States Federal Reserve on May of 2024.