According to the 2012 census the population of Sri Lanka was 20,359,439, giving a population density of 325/km2. The population had grown by 5,512,689 (37.1%) since the 1981 census (the last full census), equivalent to an annual growth rate of 1.1%. 5,131,666 (25.2%) of the population were aged 14 or under whilst 2,525,573 (12.4%) were aged 60 or over, leaving a working age (15-59) population of 12,702,700. The
dependency ratio was 60.2%. There were 5,264,282 households, of which 3,986,236 (75.7%) were headed by males and 1,278,046 (24.3%) were headed by females. Of those aged 15 or over, 7,857,370 (51.6%) were economically active, 4,199,558 (27.6%) did
housework, 1,431,105 (9.4%) were students, 914,934 (6.0%) were unable to work and 346,084 (2.3%) were pensioners. 521,938 (6.6%) of the economically active were
unemployed. The overall
literacy rate for those aged 10 and over was 95.7% but amongst those living in the estate sector it was only 86.1%. Of the 18,615,577 aged 5 or over, 499,563 (2.7%) had received a higher education qualification, 2,293,841 (12.3%) had passed
G.C.E. A/L, 3,159,402 (17.0%) had passed
G.C.E. O/L and 700,419 (3.8%) had no formal schooling. The remaining 11,962,352 (64.3%) had left school with no qualifications or were currently at school. In 2015, Sri Lanka's population aged over 60 was 13.9%, by 2030 this will increase to 21% and by 2050 this number will reach 27.4%.
Age groups ==Vital statistics==