| Sr. No. | Agency | Area (km²) | Population (1998) |
| 1 | Bajaur Agency | 1,290 | 595,227 |
| 2 | Khyber Agency | 2,576 | 546,730 |
| 3 | Kurram Agency | 3,380 | 448,310 |
| 4 | Mohmand Agency | 2,296 | 334,453 |
| 5 | North Waziristan Agency | 4,707 | 361,246 |
| 6 | Orakzai Agency | 1,538 | 225,441 |
| 7 | South Waziristan Agency | 6,620 | 429,841 |
| 8 | FR Bannu | 745 | 19,593 |
| 9 | FR Dera Ismail Khan | 2,008 | 38,990 |
| 10 | FR Kohat | 446 | 88,456 |
| 11 | FR Lakki Marwat | 132 | 6,987 |
| 12 | FR Peshawar | 261 | 53,841 |
| 13 | FR Tank | 1,221 | 27,216 |