Marietta is a city located in Cobb County, Georgia. Marietta has a 2025 population of 63,643 . It is also the county seat of Cobb County . Marietta is currently growing at a rate of 0.83% annually and its population has increased by 4.27% since the most recent census, which recorded a population of 61,036 in 2020.
The average household income in Marietta is $105,083 with a poverty rate of 12.67%. The median age in Marietta is 35.2 years: 34 years for males, and 36.9 years for females. For every 100 females there are 93.6 males.
Data after 2023 is projected based on recent change
The racial composition of Marietta includes 43.7% White, 30.4% Black or African American, 11.02% other race, and smaller percentages for Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
White (43.7%)
Black or African American (30.4%)
Two or more races (11.42%)
Other race (11.02%)
Asian (1.98%)
Native American (1.48%)
Native Hawaiian or Pacific Islander (0.01%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 26,992 | 43.7% |
| Black or African American | 18,776 | 30.4% |
| Two or more races | 7,054 | 11.42% |
| Other race | 6,809 | 11.02% |
| Asian | 1,224 | 1.98% |
| Native American | 913 | 1.48% |
| Native Hawaiian or Pacific Islander | 5 | 0.01% |
Married
Widowed
Divorced
Separated
Never Married
Marietta's average per capita income is $47,684. Household income levels show a median of $70,086. The poverty rate stands at 12.67%.
Name | Median | Mean |
|---|---|---|
| Married Families | $128,377 | - |
| Families | $86,838 | $126,259 |
| Households | $70,086 | $105,083 |
| Non Families | $51,400 | $70,015 |
Average Income
Median Household Income
Poverty Rate