| Tehsil | Population | Area (km2) | Pop. Density | Sex-ratio |
|---|---|---|---|---|
| Lathao | 8390 | 108.74 | 77 | 927 |
| Great Nicobar | 8367 | 1205.88 | 7 | 665 |
| Poo | 8309 | 1290 | 6 | 775 |
| Bongaigaon (Pt) | 8253 | 9.56 | 863 | 994 |
| Arjyapalli Marine | 8001 | 4.13 | 1937 | 1002 |
| Ghathashi | 7967 | 140.06 | 57 | 1000 |
| Dhanupali | 7727 | 12.52 | 617 | 934 |
| Amini | 7661 | 2.59 | 2958 | 1001 |
| Multhan | 7612 | 979 | 8 | 941 |
| Asuto | 7598 | 73.53 | 103 | 960 |
| Baganpara (Pt) | 7588 | 10.91 | 695 | 942 |
| Agatti | 7566 | 3.84 | 1970 | 943 |
| Namsing | 7459 | 256.87 | 29 | 973 |
| Koloriang | 7427 | 347.30 | 21 | 992 |
| Nafra | 7403 | 1509.03 | 5 | 939 |
| Pistana | 7170 | 363.74 | 20 | 1026 |
| Sanis | 7155 | 89.66 | 80 | 1025 |
| Kanubari | 7152 | 137.16 | 52 | 981 |
| Mebo | 7015 | 571.71 | 12 | 948 |
| Kamporijo | 6951 | 958.51 | 7 | 1017 |