| a | | Projected estimate (medium fertility variant). |
| b | | Land area only. Excluding 84 square km of uninhabited islands. |
| c | | 2022 |
| d | | 2015 |
| e | | 2023 |
| f | | At factor cost. |
| g | | 2010 |
| h | | De facto population. |
| i | | Persons present (de facto). |
| j | | Estimate. |
| k | | 2021 |
| l | | 2019 |
| m | | Data refers to a 5-year period preceding the reference year. |
| n | | Calculated by the UN Statistics Division. |
| o | | Data refer to fiscal years beginning 1 July. |
| p | | General government expenditure (GGE) can be larger than the Gross domestic product (GDP) because government accounts for a very large part of domestic consumption and because a large part of domestic consumption in the country is accounted for by imports. |
| q | | 2013 |
| r | | 2017 |
| s | | 2012 |
| t | | Data are as at 1 January of reporting year. |
| u | | Air arrivals. Tarawa and Christmas Island. |