Marietta is a city located in Lac qui Parle County Minnesota. With a 2020 population of 139, it is the 715th largest city in Minnesota and the 17653rd largest city in the United States . Marietta is currently declining at a rate of -0.71% annually and its population has decreased by -14.20% since the most recent census, which recorded a population of 162 in 2010. Marietta reached it's highest population of 159 in 2010. Spanning over 0 miles, Marietta has a population density of 379 people per square mile.
The average household income in Marietta is $39,659 with a poverty rate of 22.22%. The median rental costs in recent years comes to - per month, and the median house value is $35,000. The median age in Marietta is 54.8 years, 54.3 years for males, and 58.3 years for females.