Census 2011 is the 15th Census of India since 1872.

1. Motto of census 2011 : “Our Census, Our future”.
2. Commissioner of India 2011 census: C. Chandramauli
3. Total population of India according to 2011 census: 121 Crore
4. Most populous state in India: Uttar Pradesh
5. Least populous state in India: Sikkim
6. Rate of growth of population of India according to 2011 census: 17.61%
7. State has highest fertility rate in India : Meghalaya
8. Literacy rate in India according to Census 2011: 74.04%
9. Male Literacy rate in India according to Census 2011: 82.14%
10. Female Literacy rate in India according to Census 2011: 65.46%
11. Most literate state in India: Kerala (93.9%)
12. Least literate state in India: Bihar (63.82%)
13. Most literate Union territory in India: Lakshadweep (92.2%)
14. Least literate Union territory in India: Dadra and Nagar Haveli
15. State has high density of population: Bihar (1102)
16. State has low density of population: Arunachal Pradesh (17)
17. State has highest sex ratio: Kerala (1084/1000)
18. State has lowest sex ratio: Haryana
19. Density of Population of India: 382
20. Sex ratio of India: 940/1000
21. Union territory has highest sex ratio: Pondicherry
22. Union territory has lowest sex ratio: Lakshadweep
23. Number of districts in India according to census 2011: 640
24. State has highest rural population according to census 2011: Uttar Pradesh
25. State has lowest rural population according to census 2011: Sikkim
26. State has highest urban population according to census 2011: Maharashtra
27. State has lowest urban population according to census 2011: Sikkim