Resident Population in Deaf Smith County, TX was 18.34700 Thous. of Persons in January of 2023, according to the United States Federal Reserve. Historically, Resident Population in Deaf Smith County, TX reached a record high of 21.16500 in January of 1980 and a record low of 18.19300 in January of 2003. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Deaf Smith County, TX - last updated from the United States Federal Reserve on May of 2024.