| Footnotes |
| a | For statistical purposes, the data for United Kingdom do not include this area. | |
| b | Projected est. (medium fertility variant). | |
| c | Including low water level for all islands (area to shoreline). | |
| d | 2023 | |
| e | 2001 | |
| f | Estimate. | |
| g | 2022 | |
| h | 2018 | |
| i | 2019 | |
| j | Data refers to a 5-year period preceding the reference year. | |
| k | Calculated by the UN Statistics Division. | |
| l | For statistical purposes, the foreign-born population includes persons born in United Kingdom, Anguilla, Bermuda, British Virgin Islands, Cayman Islands, Channel Islands, Falkland Islands (Malvinas), Gibraltar, Isle of Man, Montserrat, and Saint Helena. | |
| m | Including refugees. | |
| n | 2024 | |
| o | 2014 | |
| p | 2021 |