Rosburg, Washington
Rosburg is a Census-designated place in Wahkiakum County, Washington, United States. Rosburg is located on the Grays River near Washington State Route 4, northwest of Cathlamet. Rosburg has a post office with ZIP code 98643. The CDP includes the communities of Eden and Oneida.
Christian Rosburg, the town's first postmaster, named Rosburg for himself.
