Machias is a census-designated place (CDP) in Snohomish County, Washington, United States.

[4] A post office called Machias was established in 1892, and remained in operation until 1943.

[6] According to the United States Census Bureau, the CDP has a total area of 2.3 mi2 (5.9 km2), all land.

As of the 2000 census,[1] there were 1,015 people, 344 households, and 267 families residing in the CDP.

14.8% of all households were made up of individuals, and 2.9% had someone living alone who was 65 years of age or older.