The control center is located at 3101 Auburn Way S, Auburn, Washington, which is 11.5 miles (18.5 km) from Seattle–Tacoma International Airport, the only Class B airport served by the center.[citation needed] The center was moved from Sea-Tac to a three-story facility in Auburn in August 1962.[2][3] The Auburn facility was the first to replace its radar systems with digital displays in 1999.[4]
The following are Class D airports in the Seattle ARTCC. Those with continuously operating control towers (as opposed to control towers closed during the night) are italicized.