Population Estimate, Total, Not Hispanic or Latino, White Alone (5-year estimate) in Llano County, TX was 18249.00000 Persons in January of 2022, according to the United States Federal Reserve. Historically, Population Estimate, Total, Not Hispanic or Latino, White Alone (5-year estimate) in Llano County, TX reached a record high of 18383.00000 in January of 2020 and a record low of 16326.00000 in January of 2009. Trading Economics provides the current actual value, an historical data chart and related indicators for Population Estimate, Total, Not Hispanic or Latino, White Alone (5-year estimate) in Llano County, TX - last updated from the United States Federal Reserve on May of 2024.