Snohomish is a city in Snohomish County, Washington, United States. The population was 9,098 at the 2010 census. It is located upon the Snohomish River, southeast of Everett and northwest of Monroe. Snohomish lies at the intersection of U.S. Route 2 and State Route 9. The city’s airport, Harvey Airfield, is located south of downtown and used primarily for general aviation.

The city was founded in 1859 and named Cadyville for fortune-hunter settler E. F. Cady and renamed to Snohomish in 1871. It served as county chair of Snohomish County from 1861 to 1897, when the county organization was relocated to Everett. Snohomish has a downtown district that is well-known for its buildup of very old shops and is listed on the National Register of Historic Places. The mayor of Snohomish is John T. Kartak and the city administrator is Steve Schuller.

The Snohomish River Valley was originally inhabited by the Snohomish people, a Coast Salish tribe who lived amid Port Gardner Bay and modern-day Monroe. An archaeological site near the confluence of the Snohomish and Pilchuck Rivers has indications of human habitation that began as in advance as 8,000 years in the past present. The Snohomish had entry with white explorers in the forward 19th century, with their say recorded as “Sinnahamis” by John Work of the Hudson’s Bay Company, among the first to along with use the broadcast to describe the river. The Snohomish were signatories of the Point Elliott Treaty in 1855, which relocated the tribe to the Tulalip Indian Reservation. In the early 1850s, the territorial direction planned to build a military road connecting Fort Steilacoom to Fort Bellingham, with a ferry crossing of the Snohomish River at Kwehtlamanish, a winter village of the Snohomish people. The road, proposed in the wake of the Pig War, was expected to be built far ample inland to be secure from British naval attacks.^{[citation needed]}

The confluence of the Snohomish and Pilchuck rivers, located near Kwehtlamanish, was sought by several American settlers from Steilacoom who arrived in 1859 to file homestead claims. Edson F. Cady and Heil Barnes, representing carpenter Emory C. Ferguson, settled near the proposed ferry landing, while Egbert H. Tucker filed a claim for a scheme on the extra side of the Snohomish River. The unity was originally known as “Cadyville” and distorted its proclaim to Snohomish City in 1871. The name Snohomish comes from the herald of the dominant local Native American tribe “sdoh-doh-hohbsh” ([sduhúbʃ]), whose meaning is widely disputed.

Although the military road was never completed, Snohomish speedily became a center of commerce in the expanding region. In 1861, Snohomish County divided from Island County and the Village of Snohomish was voted the county seat. It remained consequently until 1897 behind the county seat was relocated to the larger, yet much newer neighboring city of Everett, Washington after a controversial and contested county-wide vote.