Barneston is an extinct town in King County, in the U.S. state of Washington.

[1] Barneston was established following the construction of a lumber mill in the Cedar River watershed, along with homes for its employees.

On June 12, 1901, a post office was built, and the town was named after John G. Barnes who was the secretary and treasurer of the Kent Lumber Company that owned the land.

[2][3] Barneston was distinguished from other logging communities by its relatively large Japanese immigrant population, which comprised about 35 percent of the workforce.

[2] The original post office remained in operation until 1924, when the city of Seattle disallowed all human habitation within the Cedar River watershed in order to keep the water pure.