Bevölkerungsentwicklung – Sien
Jährliche Komponenten
| Jahr | Bevölkerung | Geburten | Sterbefälle | Natürlicher Saldo | Wanderungssaldo |
|---|---|---|---|---|---|
| 2025 | 553 | – | 3 | – | – |
| 2024 | 550 | 2 | 7 | -5 | -4 |
| 2023 | 559 | 4 | 5 | -1 | 31 |
| 2022 | 529 | 5 | 5 | 0 | 7 |
| 2021 | 513 | 6 | 5 | 1 | -2 |
| 2020 | 515 | 4 | 7 | -3 | -13 |
| 2019 | 531 | 8 | 5 | 3 | 14 |
| 2018 | 514 | 3 | 10 | -7 | 5 |
| 2017 | 517 | 4 | 11 | -7 | 18 |
| 2016 | 506 | 1 | 6 | -5 | 8 |
| 2015 | 503 | 2 | 2 | 0 | 0 |
| 2014 | 503 | 2 | 1 | 1 | -16 |
| 2013 | 518 | 1 | 4 | -3 | 18 |
| 2012 | 503 | 2 | 5 | -3 | -12 |
| 2011 | 517 | – | 6 | – | -3 |
| 2010 | 535 | 1 | 8 | -7 | -1 |
| 2009 | 543 | 3 | 5 | -2 | -26 |
| 2008 | 571 | 4 | 8 | -4 | -6 |