| a | | Projected est. (medium fertility variant). |
| b | | 2023 |
| c | | Refers to the population of Brussels-Capital Region and "communes" of the agglomeration and suburbs. |
| d | | 2019 |
| e | | 2024 |
| f | | Exc. irrigation canals and landscaping care. |
| g | | Data classified according to ISIC Rev. 4. |
| h | | Exc. publishing activities. Inc. irrigation canals. |
| i | | Inc. publishing activities and landscape care. Exc. repair of personal and household goods. |
| j | | Estimate. |
| k | | Calculated by the UN Statistics Division from national indices. |
| l | | Data refers to a 5-year period preceding the reference year. |
| m | | Calculated by the UN Statistics Division. |
| n | | Including refugees. |
| o | | The number of stateless persons includes recognized stateless persons who have been granted a residence permit in Belgium and who are therefore registered in the national register. It should be noted that recognized stateless persons who have not been granted a residence permit are not taken into account in figures provided by the Belgian Government. |
| p | | 2022 |
| q | | 2021 |
| r | | Data at 1 January of the reporting year. |
| s | | Population aged 16 to 74 years. |
| t | | Break in the time series. |
| u | | Development Assistance Committee member (OECD). |