| Place Name | Decatur |
| Place Type | City |
| ZIP Code(s) | 30030 30033 |
| County | DeKalb County |
| Area Code(s) | 404,470,678 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 19,443 |
| Population Growth Rate (2010-19) | 28.93% |
| Majority Ethnicity | White 72.16% |
| Metro/Micro Stats Area | Atlanta-Sandy Springs-Alpharetta, GA |
| US Congressional District(s) | Georgia 5thGeorgia 4th |
| State House Districts | 82,83,84,85 |
| State Senate Districts | 042 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 72.16% |
| African American | 16.17% |
| Hispanic | 0.46% |
| Asian | 4.07% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 7.14% |