| a | | Projected est. (medium fertility variant). |
| b | | For statistical purposes, the data for United States of America do not include this area. |
| c | | 2023 |
| d | | 2018 |
| e | | Estimate. |
| f | | Calculated by the UN Statistics Division from national indices. |
| g | | 2024 |
| h | | 2019 |
| i | | Data refers to a 5-year period preceding the reference year. |
| j | | Calculated by the UN Statistics Division. |
| k | | For statistical purposes, the foreign-born population includes persons born in the 50 states of the United States of America, the District of Columbia, Puerto Rico, Northern Mariana Islands, and the United States Virgin Islands. |
| l | | 2011 |
| m | | 2017 |
| n | | 2022 |
| o | | Air and sea arrivals. |