| Central Tapanuli Regency |
293.7 |
6,718,94 km |
| South Tapanuli Regency |
293.7 |
6,795,44 km |
| Kabupaten Tapanuli Utara |
293.5 |
6,755,51 km |
| Kota Padangsidimpuan |
293.8 |
6,803,72 km |
| Kabupaten Humbang Hasundutan |
293.5 |
6,686,09 km |
| North Padang Lawas Regency |
293.7 |
6,841,06 km |
| Kabupaten Mandailing Natal |
294.1 |
6,829,00 km |
| Kabupaten Toba Samosir |
293.3 |
6,752,95 km |
| Samosir Regency |
293.3 |
6,691,12 km |
| Padang Lawas Regency |
293.8 |
6,868,69 km |
| Kabupaten Pakpak Bharat |
293.4 |
6,646,49 km |
| North Labuhan Batu Regency |
293.3 |
6,798,74 km |
