Lake Cassidy is a city located in Washington. Lake Cassidy has a 2020 population of 3,602. Lake Cassidy is currently declining at a rate of 0.00% annually and its population has increased by 5.48% since the most recent census, which recorded a population of 3,415 in 2010. Lake Cassidy reached it's highest population of 4,027 in 2011.
The average household income in Lake Cassidy is $121,773 with a poverty rate of 8.97%. The median rental costs in recent years comes to $1,722 per month, and the median house value is $469,200. The median age in Lake Cassidy is 45.6 years, 44.4 years for males, and 47.1 years for females. For every 100 females there are 117.0 males.