Lake Cassidy is a census-designated place (CDP) located in Snohomish County, Washington, United States. As of the 2020 census, Lake Cassidy had a population of 3,757.
Demographics
The population of Lake Cassidy was 3,415 at the 2010 Census. 1,880 people are male. 1,535 are female. ==Geography==
Geography
Lake Cassidy is located at coordinates (48.066044, -122.082433). The elevation is 371 feet. According to the United States Census Bureau, the CDP has a total area of 10.8 square miles (27.9 km2), of which, 10.6 square miles (27.4 km2) of it is land and 0.2 square miles (0.6 km2) of it (1.98%) is water. ==References==