Resident Population in Donley County, TX was 3.19300 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, Resident Population in Donley County, TX reached a record high of 4.27000 in January of 1983 and a record low of 3.17700 in January of 2023. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Donley County, TX - last updated from the United States Federal Reserve on April of 2026.