Stanwood is a city in Snohomish County, Washington, United States. The city is located 50 miles (80 km) north of Seattle, at the mouth of the Stillaguamish River near Camano Island. As of the 2010 census, its population is 6,231.
Stanwood was founded in 1866 as Centerville, adopting its current name in 1877 after the arrival of postmaster Daniel O. Pearson. It was platted in 1889 and incorporated as a city in 1903. The city was bypassed by the Great Northern Railway, which built a depot one mile (1.6 km) east that grew into its own separate town, incorporated in 1922 as East Stanwood. The two Stanwoods were civic rivals for several decades, until their governments were consolidated after a 1960 referendum was approved by voters.
The city was historically home to several food processing plants, which were its largest employers, and was mainly populated by Scandinavians. Since the 1990s, Stanwood has grown into a bedroom community for Seattle and Everett and has annexed uphill areas that were developed into suburban subdivisions. Stanwood is primarily served by State Route 532, which connects Camano Island to Interstate 5, and also has a train station that opened in 2009.