Resident Population in Garza County, TX was 4.64500 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, Resident Population in Garza County, TX reached a record high of 6.55600 in January of 2011 and a record low of 4.52700 in January of 2022. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Garza County, TX - last updated from the United States Federal Reserve on April of 2026.