Eddyville is an unincorporated community in Lincoln County, in the U.S. state of Oregon. Eddyville's unofficial estimated population as of 2014 was about 400 to 500.Eddyville lies at the intersection of U.S. Route 20 and Oregon Route 180 east of Chitwood and at the confluence of Little Elk Creek and the Yaquina River. The community was named by and for Israel F. Eddy, who was postmaster here in 1888.