Resident Population in San Saba County, TX was 5.50800 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, Resident Population in San Saba County, TX reached a record high of 6.28600 in January of 2000 and a record low of 5.26600 in January of 1991. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in San Saba County, TX - last updated from the United States Federal Reserve on April of 2026.