Resident Population in Tyler County, TX was 20.56000 Thous. of Persons in January of 2024, according to the United States Federal Reserve. Historically, Resident Population in Tyler County, TX reached a record high of 21.76300 in January of 2010 and a record low of 12.41700 in January of 1970. Trading Economics provides the current actual value, an historical data chart and related indicators for Resident Population in Tyler County, TX - last updated from the United States Federal Reserve on April of 2026.