Palo Pinto County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 28,409. The county seat is Palo Pinto. The county was created in 1856 and organized the following year. Palo Pinto County comprises the Mineral Wells micropolitan statistical area, which is part of the Dallas–Fort Worth combined statistical area. It is located in the western Cross Timbers ecoregion.