Resident Population in Cass County, TX was 28.65900 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Cass County, TX reached a record high of 30.71000 in January of 1982 and a record low of 24.10000 in January of 1971. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Cass County, TX - last updated from the United States Federal Reserve on May of 2024.