Swamp Creek (Washington)

Swamp Creek is a stream located in Snohomish County, Washington, United States. It is a tributary of the Sammamish River. The creek's headwaters originate in the wetlands and forested areas east of Lynnwood and west of Mill Creek. It flows generally south and then west, passing through areas of urban and suburban development before entering the Sammamish River near Bothell.

The creek's watershed encompasses a variety of land uses, including residential, commercial, and industrial areas, as well as some remaining forested areas and wetlands. Swamp Creek has been subject to concerns related to water quality, stormwater runoff, and habitat degradation due to urbanization within its watershed. Efforts are ongoing to manage and improve water quality and restore riparian habitats along the creek. These efforts often involve partnerships between local governments, community organizations, and state agencies.