| Religion | Number | % |
|---|---|---|
| Total | 20,263,723 | 100 |
| Buddhist | 14,222,844 | 70.2 |
| Hindu | 2,554,606 | 12.6 |
| Islam | 1,967,227 | 9.7 |
| RC & Other Christian | 1,237,038 | 6.1 |
| Other Christian | 272,568 | 1.3 |
Source: Department of Census and Statistics,2012http://www.statistics.gov.lk/PopHouSat/CPH2011/index.php?fileName=pop43&gp=Activities&tpl=3