According to the 2011 census of India, Lalong has 198 households. The effective literacy rate (i.e. the literacy rate of population excluding children aged 6 and below) is 72.66%.[2]
Demographics (2011 Census)[2]
| Total | Male | Female |
| Population | 1423 | 744 | 679 |
| Children aged below 6 years | 271 | 140 | 131 |
| Scheduled caste | 0 | 0 | 0 |
| Scheduled tribe | 1412 | 737 | 675 |
| Literates | 837 | 461 | 376 |
| Workers (all) | 560 | 291 | 269 |
| Main workers (total) | 551 | 288 | 263 |
| Main workers: Cultivators | 534 | 276 | 258 |
| Main workers: Agricultural labourers | 0 | 0 | 0 |
| Main workers: Household industry workers | 2 | 0 | 2 |
| Main workers: Other | 15 | 12 | 3 |
| Marginal workers (total) | 9 | 3 | 6 |
| Marginal workers: Cultivators | 0 | 0 | 0 |
| Marginal workers: Agricultural labourers | 0 | 0 | 0 |
| Marginal workers: Household industry workers | 3 | 0 | 3 |
| Marginal workers: Others | 6 | 3 | 3 |
| Non-workers | 863 | 453 | 410 |