1981 census of India
| 1981 census of India | ||
|---|---|---|
| 
 | ||
| General information | ||
| Country | India | |
| Results | ||
| Total population | 685,184,692 (25.04%) | |
| Most populous | Uttar Pradesh (105,113,300) | |
| Least populous | Sikkim (316,840) | |
The 1981 census of India was the 12th in a series of censuses held in India every decade since 1872. The population of India was counted as 685,184,692 people.