Lynden is the second largest city in Whatcom County, Washington, United States. Named and established in 1874 near the site of the Nooksack Indian village Squahalish, the city of Lynden began as a pioneer settlement headed by Holden and Phoebe Judson.Lynden is approximately 5 miles south of the Canada–US border, with Lynden-Aldergrove operation and port of entry hours between 8:00 a.m. and midnight. It is also located about 15 miles north of Bellingham, and about 95 miles north of Seattle. The population of Lynden is about 12,902 according to the United States Census Bureau. Residents of Lynden are known as "Lyndenites". Lynden is also home to the Northwest Washington Fair.