The county of Frio is located in and was founded in 1871. There are 17,217 residents in Frio who have access to courthouses in Dilley, Pearsall. 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 3,894 residents in Dilley, which is 2.3 square miles and 561ft above sea level.
There are 9,146 residents in Pearsall, which is 5.8 square miles and 633ft above sea level.