Marietta-Alderwood is a city located in Washington. Marietta-Alderwood has a 2020 population of 4,086. Marietta-Alderwood is currently declining at a rate of 0.00% annually and its population has increased by 4.61% since the most recent census, which recorded a population of 3,906 in 2010. Marietta-Alderwood reached it's highest population of 4,704 in 2015.
The average household income in Marietta-Alderwood is $61,450 with a poverty rate of 15.39%. The median rental costs in recent years comes to $1,085 per month, and the median house value is $352,500. The median age in Marietta-Alderwood is 41.7 years, 41.4 years for males, and 41.9 years for females. For every 100 females there are 92.4 males.