| a | | Projected estimate (medium fertility variant). |
| b | | 2022 |
| c | | Refers to the Governorate of Grand Algiers. |
| d | | 2019 |
| e | | 2023 |
| f | | Estimate. |
| g | | Algiers |
| h | | Calculated by the UN Statistics Division from national indices. |
| i | | Data refers to a 5-year period preceding the reference year. |
| j | | Calculated by the UN Statistics Division. |
| k | | Including refugees. |
| l | | Data based on calendar year (January 1 to December 31). |
| m | | Estimates should be viewed with caution as these are derived from scarce data. |
| n | | 2021 |
| o | | 2011 |
| p | | Data are as at 1 January of reporting year. |
| q | | Population aged 15 years and over. |
| r | | Break in the time series. |
| s | | 2017 |
| t | | Including nationals residing abroad. |