Arkansas Territory was a historic, organized territory of the United States from July 4, 1819 to June 15, 1836, when it was admitted as Arkansas, the 25th U.S. state.

Arkansas Territory was separated from Missouri Territory and included most of what is now Oklahoma, excepting the Oklahoma Panhandle. It was reduced twice before settling, in 1828, into the present boundaries of Arkansas.

Arkansas Post was the first territorial capital (1819-1821), Little Rock was the second (1821-1836).

There were five Governors of the Arkansas Territory from 1819 to 1836 The Governors are James Miller 1819 to 1824 | George Izard 1824 to 1828 | John Pope 1829 to 1835 | William S. Fulton 1835 to 1836

See also: Historic regions of the United States

Historical regions and territories of the United States | History of Arkansas | Terytorium Arkansas