According to the 2011 census of India, Nkwareu has 123 households. The effective literacy rate (i.e. the literacy rate of population excluding children aged 6 and below) is 74.36%.[2]
Demographics (2011 Census)[2]
| Total | Male | Female |
| Population | 742 | 384 | 358 |
| Children aged below 6 years | 153 | 86 | 67 |
| Scheduled caste | 0 | 0 | 0 |
| Scheduled tribe | 381 | 190 | 191 |
| Literates | 438 | 245 | 193 |
| Workers (all) | 485 | 241 | 244 |
| Main workers (total) | 320 | 160 | 160 |
| Main workers: Cultivators | 88 | 47 | 41 |
| Main workers: Agricultural labourers | 0 | 0 | 0 |
| Main workers: Household industry workers | 1 | 0 | 1 |
| Main workers: Other | 231 | 113 | 118 |
| Marginal workers (total) | 165 | 81 | 84 |
| Marginal workers: Cultivators | 27 | 15 | 12 |
| Marginal workers: Agricultural labourers | 0 | 0 | 0 |
| Marginal workers: Household industry workers | 1 | 0 | 1 |
| Marginal workers: Others | 137 | 66 | 71 |
| Non-workers | 257 | 143 | 114 |