Mount Vernon is the county seat of Skagit County, Washington, United States. The population was 31,743 at the 2010 census. It is one of two principal cities of and included in the Mount Vernon-Anacortes, Washington Metropolitan Statistical Area. Downtown Mount Vernon is known for its annual Tulip Festival Street Fair, which is part of the Skagit Valley Tulip Festival. The climate of Skagit County is similar to that of Northern France, with millions of tulips grown in the Skagit Valley. In 1998, Mount Vernon was rated the #1 "Best Small City in America" by the New Rating Guide to Life in America's Small Cities.
Jasper Gates and Joseph Dwelley first settled on the banks of the Skagit River, where the city of Mount Vernon now lies, in 1870. Later on, Harrison Clothier came to the community in 1877 to teach school and join in business with a former student, E.G. English. They were later recognized as the city's founders and pioneer businessmen. A post office was established in November 1877 with Clothier appointed postmaster. The city was named after Mount Vernon, the plantation estate and resting place of George Washington.