Marietta is a city located in Minnesota. With a 2020 population of 141, it is the 714th largest city in Minnesota and the 17615th largest city in the United States. Marietta is currently declining at a rate of -0.70% annually and its population has decreased by -12.96% since the most recent census, which recorded a population of 162 in 2010. Marietta reached it's highest population of 160 in 2010. Spanning over 0 miles, Marietta has a population density of 384 people per square mile.
The average household income in Marietta is $38,190 with a poverty rate of 22.44%. The median rental costs in recent years comes to - per month, and the median house value is $33,600. The median age in Marietta is 63.5 years, 54.3 years for males, and 65.9 years for females. For every 100 females there are 88.0 males.