Bellevue is a city in the Eastside region of King County, Washington, United States, across Lake Washington from Seattle.The city had a population of 122,363 at the 2010 census.
Bellevue was founded in 1869 by William Meydenbauer and was officially incorporated on March 21, 1953. Prior to the opening of the Lake Washington Floating Bridge in 1940, Bellevue was a rural area with little development. Although it was small, developers were pushing to change that; in the 1920s, James S. Ditty predicted that it would become a city with a population of 200,000. He envisioned plans that included the bridging of Lake Washington and an area filled with golf courses and airports. His map with these visions was published in 1928.