is a city in King County, Washington, United States, 15 miles (24 km) north of Downtown Seattle. As of the 2000 census, the population was 53,025, making it the 14th largest city in the state of Washington.
Based on per capita income, one of the more reliable measures of affluence, Shoreline ranks 91st of 522 areas in the state of Washington to be ranked.
Shoreline began in 1890 with the platting of the neighborhood of Richmond Beach, on Puget Sound, in anticipation of the arrival of the Great Northern Railroad the next year. Over the next two decades, Shoreline was connected to Seattle via the Seattle-Everett Interurban streetcar line (1906) and a newly paved North Trunk Road (now Aurora Avenue N., State Route 99) (1913), helping to increase its population.
The name "Shoreline" first came to be applied to this stretch of unincorporated King County in 1944, when it was given to the school district. As the school board 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 modern borders of the city do not stretch to Lake Washington , the area kept the "Shoreline" name.
After the incorporation of Lake Forest Park in 1961, the remainder of the Shoreline School District remained an unincorporated portion of King County. Fifty-one years later, on August 31, 1995, Shoreline was officially incorporated as a code city and adopted the council-manager form of government. (See City government in the state of Washington.)