Ioka is an unincorporated community in eastern Duchesne County, Utah, United States.
The small farming community is located in a "little valley surrounded by bluffs" within the Uintah Basin, approximately northwest of Myton and about southwest of Roosevelt It is located on the Uintah and Ouray Indian Reservation and was named after a Ute chief. The name means "bravado".
The main (and the only paved) road in the community is Utah State Route 87 (SRâÂÂ87/Ioka Lane/West 3000 South), which runs eastâÂÂwest through the community. SRâÂÂ87 connects with U.S. Route 40/U.S. Route 191 at its eastern terminus at Ioka Junction, about the east of town.
The community was first settled in 1907 and named Mural (meaning a "walled in valley"), but the name was changed to Ioka by about 1915. In 1908 a post office for the community was established, and remained in operation until 1944.