Goldthwaite is the county seat of Mills County, Texas and is centrally located at the crossroads of US Hwy. 84, US Hwy. 183, State Hwy. 16, FM 574 and FM 2005. Our town has as estimated population of 2,000. Goldthwaite got its beginning when the railroad bgan working its way to connect the East and West. The town was named after a man named George (Joe) Goldthwaite who was an official of the railroad. The City was chartered in 1907.