Marietta is a town located in Cass County, Texas. Marietta has a 2026 population of 115. Marietta is currently declining at a rate of 0% annually and its population has increased by 0.88% since the most recent census, which recorded a population of 114 in 2020.
The median age in Marietta is 34.1 years: 18.5 years for males, and 56 years for females. For every 100 females there are 218.4 males.
Data after 2023 is projected based on recent change
Overall: 34.1 years
Female: 56 years
Male: 18.5 years
There are 156 adults, (21 of whom are seniors) in Marietta.
Female: 87 (31.4%)
Male: 190 (68.6%)
The racial composition of Marietta includes 76.53% White, 8.66% Black or African American, and smaller percentages for Native American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 212 | 76.53% |
| Two or more races | 39 | 14.08% |
| Black or African American | 24 | 8.66% |
| Native American | 2 | 0.72% |