Durchschnittsalter der Bevölkerung – nach Staatsangehörigkeit und Geschlecht, Basel-Stadt| Jahr | Schweiz | Schweizer | Schweizerinnen | Ausland | Ausländer | Ausländerinnen |
|---|
| 2006 | 46.9 | 44.2 | 49.1 | 35.0 | 35.5 | 34.4 |
| 2007 | 46.8 | 44.1 | 49.1 | 35.4 | 36.0 | 34.8 |
| 2008 | 46.6 | 43.9 | 48.9 | 35.7 | 36.2 | 35.0 |
| 2009 | 46.6 | 44.0 | 48.8 | 35.8 | 36.4 | 35.2 |
| 2010 | 46.5 | 43.9 | 48.7 | 36.1 | 36.6 | 35.4 |
| 2011 | 46.5 | 43.9 | 48.7 | 36.1 | 36.7 | 35.5 |
| 2012 | 46.4 | 43.9 | 48.6 | 36.3 | 36.8 | 35.7 |
| 2013 | 46.4 | 43.8 | 48.5 | 36.4 | 36.9 | 35.8 |
| 2014 | 46.3 | 43.9 | 48.4 | 36.5 | 37.0 | 36.0 |
| 2015 | 46.2 | 43.8 | 48.2 | 36.7 | 37.2 | 36.2 |
| 2016 | 46.1 | 43.8 | 48.1 | 36.9 | 37.3 | 36.4 |
| 2017 | 46.0 | 43.8 | 47.9 | 37.0 | 37.4 | 36.6 |
| 2018 | 45.9 | 43.7 | 47.8 | 37.1 | 37.4 | 36.8 |
| 2019 | 45.9 | 43.8 | 47.8 | 37.3 | 37.6 | 37.0 |
| 2020 | 45.7 | 43.6 | 47.5 | 37.5 | 37.8 | 37.2 |
| 2021 | 45.5 | 43.5 | 47.3 | 37.7 | 38.0 | 37.5 |
| 2022 | 45.5 | 43.5 | 47.2 | 37.8 | 37.9 | 37.6 |
| 2023 | 45.4 | 43.5 | 47.1 | 37.9 | 38.1 | 37.7 |
| 2024 | 45.4 | 43.5 | 47.0 | 38.0 | 38.1 | 37.9 |
| 2025 | 45.3 | 43.5 | 46.9 | 38.1 | 38.1 | 38.1 |