The county of Mills is located in and was founded in 1887. There are 4,936 residents in Mills who have access to courthouses in Goldthwaite. In general, each county has a full set of courts, from traffic court to superior and appellate court; supreme courts are usually located in the state capital. is part of the 5th federal circuit court as well.
There are 1,802 residents in Goldthwaite, which is 1.7 square miles and 1,572ft above sea level.