Resident Population in Pratt County, KS was 9.08200 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Pratt County, KS reached a record high of 10.86200 in January of 1983 and a record low of 9.06700 in January of 2022. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Pratt County, KS - last updated from the United States Federal Reserve on May of 2024.