Mountlake Terrace is a suburban city in Snohomish County, Washington, United States. It lies on the southern border of the county, adjacent to Shoreline and Lynnwood, and is north of Seattle. The city had a population of 19,909 people counted in the 2010 census.
Mountlake Terrace was founded in 1949 by real estate developers on the site of a disused airfield, intending to provide low-cost housing for veterans. Within five years, the community had grown to over 5,000 people and was incorporated as a city in 1954 to provide municipal services. An industrial park was developed at the northwest corner of the city, which was connected by Interstate 5 after it opened in 1965. Mountlake Terrace originally had several small shopping centers that declined due to the local economy and a pair of arsons in 1990.
The city government began developing a downtown revitalization plan with mixed-use buildings in the 2000s, with hopes of growing beyond a bedroom community for Seattle commuters. The Mo