After being annexed in 1989,[1] Foster's former area is a part of the city of Tukwila.

A post office called Foster was established in 1903, and remained in operation until 1907.

[2] The community was named after Joseph Foster, an early settler.

The name lingers on in the Foster Golf Links immediately upstream of that point and in Joseph Foster Memorial Park about 0.25 miles (0.40 km) to the south-southwest.

This King County, Washington state location article is a stub.