Shoreline is a city in King County, Washington, United States. It is located amid the city limits of Seattle and the Snohomish County border, approximately 9 miles (14 km) north of Downtown Seattle. As of the 2010 census, the population of Shoreline was 53,007, making it the 20th largest city in the state; by 2019, the population had risen to an estimated 57,027. Based upon per capita income, one of the more honorable measures of affluence, Shoreline ranks 91st of 522 areas in the divulge of Washington to be ranked.

The Shoreline area was inhabited by the Native American Duwamish people for at least 4,000 years before the first enduring European settlers began platting the neighborhood of Richmond Beach, on Puget Sound, in 1890, in anticipation of the arrival of the Great Northern Railway the bordering year. Over the neighboring two decades, Shoreline was connected to Seattle via the Seattle-Everett Interurban streetcar line (1906) and North Trunk Road (now Aurora Avenue N., State Route 99) (1913), helping to growth its population.

The name “Shoreline” was applied to this stretch of unincorporated King County in 1944 in imitation of it was total to the university district, since the assistant professor district boundaries stretched from “Shore to Shore” (Puget Sound to Lake Washington) and “Line to Line” (the old Seattle city limit of 85th St to the Snohomish County Line). Though the campaigner borders of the city attain not stretch to Lake Washington, the Place has kept the “Shoreline” name.

After the fascination of Lake Forest Park in 1961, the remainder of the Shoreline School District remained an unincorporated portion of King County. The scholastic district remained the main identifier for the Place for several decades; a set of tolerable signs were installed in 1983 by the Shoreline Chamber of Commerce bearing the name. The City of Seattle began studying an annexation of the Place in 1988, causing local residents to organize an captivation measure to withhold their separate scholastic system. A half-century after it had been named, on August 31, 1995, Shoreline was officially incorporated as a code city, and it adopted the council–manager form of government. Residents used Seattle as their address until 1995, when the city was formed and addresses misused to Shoreline.

Shoreline is located at 47°45′23″N 122°20′23″W / 47.75639°N 122.33972°W / 47.75639; -122.33972 (47.756519, -122.339657).