Agness is an unincorporated town about 30 miles East of Gold Beach in Curry County. It is located near the confluence of two Wild and Scenic Rivers-the Lower Rogue River and the Illinois River.  Agness Post Office was established October 16, 1897, and named after Agnes, the daughter of the first postmaster. (And subsequently misspelled.) The Agness area is popular for fishing and hiking. Agness is in the Siskiyou National Forest and was threatened by the Biscuit Fire in 2002.

Agness is served by one of only two rural mail boat routes still operating in the U.S.  The mail boat runs on the Rogue River between Gold Beach and Agness.

Agness has a K-6 "one room school", which actually consists of two rooms.