Bilecik Nüfusu
| YIL | MERKEZ | KÖYLER | TOPLAM |
| 2007 | 45.126 | 17.949 | 63.075 |
| 2008 | 39.453 | 17.130 | 56.583 |
| 2009 | 46.403 | 16.420 | 62.823 |
| 2010 | 62.320 | 15.938 | 78.258 |
| 2011 | 49.671 | 15.788 | 65.459 |
| 2012 | 51.260 | 15.627 | 66.887 |
| 2013 | 55.113 | 15.959 | 71.072 |
| 2014 | 57.117 | 15.494 | 72.611 |
| 2015 | 59.163 | 14.856 | 74.019 |
| 2016 | 63.275 | 14.701 | 77.976 |
| 2017 | 65.578 | 14.487 | 80.065 |
| 2018 | 67.891 | 13.832 | 81.723 |
| 2019 | 65.375 | 13.158 | 78.533 |
| 2020 | 65.073 | 12.956 | 78.029 |
| 2021 | 74.457 | 11.985 | 86.442 |
| 2022 | 72.245 | 11.998 | 84.243 |
