Houghton Post Office is established on June 20, 1881. James Curtis is the first postmaster. The post office is located seven miles northwest of Seattle within the future city limits of Kirkland on the east shore of Lake Washington along the Northern Pacific Railroad line.
The post office did not operate from December 15, 1905 till January 22, 1906. On April 15, 1961, it became a branch of the Kirkland Post Office. The branch closed sometime during 1962-1963.