| Groupe d'âge | 2016 | 2021 | 2026 | 2031 | 2036 | 2041 |
| n | ||||||
| TOTAL | 161 457 | 162 478 | 162 033 | 160 428 | 158 123 | 155 439 |
| 0-4 | 8 054 | 7 322 | 6 984 | 6 583 | 6 453 | 6 613 |
| 5-9 | 8 012 | 8 062 | 7 400 | 7 095 | 6 717 | 6 598 |
| 10-14 | 7 278 | 8 014 | 8 079 | 7 440 | 7 155 | 6 794 |
| 15-19 | 7 823 | 7 550 | 8 333 | 8 389 | 7 764 | 7 497 |
| 20-24 | 9 351 | 9 099 | 8 917 | 9 688 | 9 734 | 9 159 |
| 25-29 | 9 380 | 9 150 | 8 418 | 8 088 | 8 885 | 8 943 |
| 30-34 | 9 993 | 9 262 | 8 770 | 7 921 | 7 627 | 8 463 |
| 35-39 | 10 586 | 9 983 | 9 264 | 8 817 | 7 966 | 7 693 |
| 40-44 | 9 023 | 10 463 | 9 891 | 9 217 | 8 824 | 7 985 |
| 45-49 | 8 750 | 8 874 | 10 287 | 9 741 | 9 107 | 8 757 |
| 50-54 | 12 543 | 8 656 | 8 756 | 10 145 | 9 625 | 9 024 |
| 55-59 | 14 641 | 12 332 | 8 581 | 8 671 | 10 045 | 9 550 |
| 60-64 | 13 293 | 14 240 | 12 038 | 8 450 | 8 542 | 9 901 |
| 65-69 | 11 025 | 12 688 | 13 663 | 11 630 | 8 231 | 8 335 |
| 70-74 | 8 342 | 10 334 | 11 920 | 12 920 | 11 078 | 7 909 |
| 75-79 | 5 524 | 7 439 | 9 296 | 10 826 | 11 825 | 10 225 |
| 80-84 | 4 041 | 4 509 | 6 166 | 7 802 | 9 207 | 10 167 |
| 85-89 | 2 500 | 2 797 | 3 215 | 4 505 | 5 806 | 6 996 |
| 90-94 | 1 074 | 1 308 | 1 519 | 1 828 | 2 661 | 3 522 |
| 94-99 | 203 | 358 | 464 | 570 | 733 | 1 118 |
| 100 et plus | 21 | 38 | 72 | 102 | 138 | 190 |
| Source : Institut de la statistique du Québec, Perspectives démographiques du Québec et des régions, 2016-2066. | ||||||
| .. | Data not available |
| ... | Not applicable |
| – | Void or zero |
| — | Negligible data |
| p | Preliminary data |
| r | Revised data |
| e | Estimated data |
| x | Confidential |
| F | Data unreliable |
| n.e.s. | Not elsewhere specified |
| p.-y. | Person-year |
| f.t.e | Full-time equivalent |
| ‰ | Per thousand |
| kg | Kilogramme |
| l | Liter |
| n | Number |
| t | Metric ton |
| $ | In dollars |
| k and '000 | In thousands |
| M and '000 000 | In millions |
| G | In billions |