Marietta
- County:
- Lac qui Parle County
- County Seat:
- No
- Area (mi²):
- 0.367
- State:
- Minnesota
Marietta is a city located in Lac qui Parle County, Minnesota. Marietta has a 2026 population of 116. Marietta is currently declining at a rate of -0.85% annually and its population has decreased by -2.52% since the most recent census, which recorded a population of 119 in 2020.
The median household income in Marietta is $34,375 with a poverty rate of 48.75%. The median age in Marietta is 34 years: 27.9 years for males, and 35.4 years for females. For every 100 females there are 90.8 males.