Marietta city, Georgia
Official LSAD Designation: Marietta city • Census GEOID: 1349756
• Cobb County
Demographics & Population Profile
Population and demographics for Marietta city.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 63,574 | — | 2025 | Census |
| Median Age | 34.8 yrs | ±1.1 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 24,707 | ±883 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).