Mills County 

Mills County was created on March 15, 1887, from parts of four existing counties: Brown, Comanche, Hamilton, and Lampass. The county is named after John T. Mills, a Texas Supreme Court Judge. The county seat is Goldthwaite.

 In 1876, a telegraph line was built. A hotel at a local ranch hosted a telegraph office operated by Hallie Hutchinson, the first woman telegraph operator in the U.S. The telegraph line connected Austin and Fort Concho. It was eventually replaced by a telephone line considered the longest in the United States. 

The 2020 census reported a population of 4,456.

‍