Cathan is a former census-designated place (CDP) in Snohomish County, Washington, United States. The population was 526 at the 2000 census. The CDP was discontinued at the 2010 census.
Geography
Cathan is located at (48.113880, -122.274621).
According to the United States Census Bureau, the CDP has a total area of 2.7 square miles (6.9 km<sup>2</sup>), of which, 2.7 square miles (6.9 km<sup>2</sup>) of it is land and 0.04 square miles (0.1 km<sup>2</sup>) of it (1.12%) is water.
Demographics
As of the census