| 1990 | 2000 | 2005 | 2010 | 2011 | 2012 | |
|---|---|---|---|---|---|---|
| Baku city | 69 699 | 118 028 | 247 728 | 518 205 | 562 690 | 609 426 |
| Ganja-Gazakh | 33 648 | 48 915 | 54 286 | 75 486 | 79 466 | 86 723 |
| Aran | 54 066 | 60 872 | 60 273 | 73 616 | 73 488 | 80 539 |
| Lankaran | 17 252 | 26 128 | 27 442 | 36 371 | 35 662 | 39 105 |
| Absheron | 12 831 | 16 005 | 17 403 | 26 097 | 28 882 | 34 945 |
| Shaki-Zagatala | 14 256 | 18 839 | 19 663 | 22 611 | 24 670 | 27 478 |
| Nakhchivan | 10 166 | 11 842 | 11 907 | 15 679 | 17 036 | 22 579 |
| Guba-Khachmaz | 10 620 | 13 554 | 12 524 | 17 234 | 17 484 | 19 529 |
| Dakhlik Shirvan | 9 070 | 10 335 | 9 890 | 9 363 | 9 706 | 11 306 |
| Yukhari Karabakh | 2 237 | 1 717 | 2 143 | 2 577 | 2 678 | 2 925 |