Preston is a small unincorporated community and exurban community located 22 miles (35 km) east of Seattle in King County,Washington, United States. The community was named after railway official William T. Preston.
Preston is a historic mill town on the northeast edge of the large Tiger Mountain State Forest, along Interstate 90. Preston, elevation 430 ft, is located within commuting distance of Seattle and Bellevue.
The local Raging River feeds into the Snoqualmie River at Fall City, and offers recreational activities like fly-fishing and swimming. Eastside Fire & Rescue has an all-volunteer fire station, Station 74, staffed by residents of Preston and nearby communities, which serves the Preston area.