Marietta is a town located in Prentiss County, Mississippi. Marietta has a 2026 population of 193. Marietta is currently declining at a rate of 0% annually and its population has decreased by 0% since the most recent census, which recorded a population of 193 in 2020.
The median household income in Marietta is $47,396 with a poverty rate of 13.33%. The median age in Marietta is 44.9 years: 46 years for males, and 43.5 years for females. For every 100 females there are 101.0 males.