Tenmile is an unincorporated community in Douglas County, Oregon, United States. It is located on Oregon Route 42 southwest of Roseburg.
Although Tenmile is unincorporated, it has a post office by the same name. The ZIP code is 97481.
Tenmile Post Office was so-named because a pioneer drove his cattle from Happy Valley in Douglas County to an area now known as Tenmile Valley.[1] The distance between the two places was about 10 miles.[1] The post office was established in 1870 as "Ten Mile" and changed to "Tenmile" in 1918.[1]