Longleng became the tenth district of Nagaland as a result of the bifurcation of the undivided Tuensang District. The district shares common boundaries with Mon District to the north, Mokokchung District to the west and Tuensang District to the south. The district's administrative seat is at Longleng, which situated at an altitude of about 1,066 m above sea level.
Facts & Figures
| Area | 885 sq. km |
| Population | 158300 |
| No. of Villages | 15 |
| No. of Schools | 09 |
| No. of Govt. Hospitals | 02 |
| No. of Primary Health Centers | 01 |
| No. of Post Offices | 01 |
| No of Colleges | 01 |
| PIN Code | 798625 |