Carson County is a county located in the U.S. state of Texas. As of the 2010 census, its population was 6,182. The county seat is Panhandle. The county was founded in 1876 and later organized in 1888. It is named for Samuel Price Carson, the first secretary of state of the Republic of Texas.Carson County is included in the Amarillo, TX Metropolitan Statistical Area.HistoryNative AmericansPrehistoric hunter-gatherer were the first inhabitants, followed by the Plains Apache. Modern Apache tribes followed them and were displaced by Comanches. The Comanches were defeated by the United States Army in the Red River War of 1874.Early ExplorationsSpanish conquistador Francisco Vásquez de Coronado explored the Llano Estacado in 1541.