Umpqua is an unincorporated community in Douglas County, in the U.S. state of Oregon. The population was 112 at the 2000 census. The community lies west of Sutherlin at the confluence of Calapooya Creek with the Umpqua River. The word "Umpqua" was first used by the local Native Americans to refer to the locality around the Umpqua River and came to be applied to the river as well.