| INMATES' AGE BRACKET | ||||||||||||
| (As of February 2012) | ||||||||||||
| REGION | UNDETERMINED | 17 & BELOW | 18-25 | 26-32 | 33-39 | 40-46 | 47-53 | 54-59 | 60-65 | 66-70 | 71-ABOVE | TOTAL |
| NCR | 19 | 39 | 4,767 | 4,655 | 3,647 | 2,783 | 1,637 | 754 | 252 | 89 | 29 | 18,671 |
| R1 | 1 | 5 | 281 | 658 | 445 | 308 | 159 | 51 | 22 | 6 | 9 | 1,945 |
| R2 | 0 | 2 | 268 | 318 | 314 | 218 | 126 | 59 | 25 | 9 | 11 | 1,350 |
| R3 | 16 | 8 | 1,104 | 1,270 | 1,213 | 958 | 575 | 287 | 94 | 29 | 19 | 5,573 |
| R4A | 0 | 7 | 1,830 | 1,918 | 1,814 | 1,249 | 626 | 245 | 95 | 26 | 15 | 7,825 |
| R4B | 0 | 4 | 115 | 174 | 140 | 100 | 51 | 36 | 18 | 7 | 4 | 649 |
| R5 | 0 | 13 | 798 | 450 | 400 | 364 | 231 | 100 | 59 | 31 | 23 | 2,469 |
| R6 | 22 | 5 | 1,406 | 1,481 | 1,270 | 832 | 369 | 210 | 95 | 50 | 33 | 5,773 |
| R7 | 236 | 201 | 1,913 | 1,857 | 1,259 | 942 | 526 | 222 | 82 | 42 | 29 | 7,309 |
| R8 | 0 | 9 | 390 | 393 | 272 | 237 | 147 | 64 | 29 | 11 | 7 | 1,559 |
| R9 | 0 | 23 | 744 | 708 | 676 | 398 | 229 | 136 | 57 | 38 | 27 | 3,036 |
| R10 | 2 | 47 | 911 | 710 | 505 | 330 | 184 | 104 | 27 | 12 | 14 | 2,846 |
| R11 | 1 | 4 | 896 | 717 | 466 | 292 | 172 | 196 | 53 | 26 | 13 | 2,836 |
| R12 | 4 | 44 | 599 | 692 | 581 | 413 | 196 | 105 | 36 | 19 | 7 | 2,696 |
| R13 | 19 | 14 | 372 | 278 | 230 | 171 | 81 | 39 | 10 | 11 | 6 | 1,231 |
| CAR | 25 | 10 | 235 | 267 | 185 | 118 | 84 | 36 | 22 | 5 | 4 | 991 |
| ARMM | 0 | 5 | 54 | 51 | 25 | 10 | 18 | 3 | 3 | 0 | 0 | 169 |
| TOTAL | 345 | 440 | 16,683 | 16,597 | 13,442 | 9,723 | 5,411 | 2,647 | 979 | 411 | 250 | 66,928 |