Sudden Valley is a city located in Washington. Sudden Valley has a 2020 population of 8,072. Sudden Valley is currently declining at a rate of 0.00% annually and its population has increased by 25.32% since the most recent census, which recorded a population of 6,441 in 2010. Sudden Valley reached it's highest population of 8,072 in 2019.
The average household income in Sudden Valley is $94,474 with a poverty rate of 4.99%. The median rental costs in recent years comes to $1,800 per month, and the median house value is $314,300. The median age in Sudden Valley is 42.6 years, 42.6 years for males, and 42.7 years for females. For every 100 females there are 88.6 males.