| 年份 | 人口总数 |
|---|---|
| 1960 | 987.45 |
| 1961 | 1011.16 |
| 1962 | 1035.22 |
| 1963 | 1059.75 |
| 1964 | 1085.00 |
| 1965 | 1111.08 |
| 1966 | 1138.07 |
| 1967 | 1165.77 |
| 1968 | 1193.76 |
| 1969 | 1221.49 |
| 1970 | 1248.57 |
| 1971 | 1274.78 |
| 1972 | 1300.22 |
| 1973 | 1325.20 |
| 1974 | 1350.19 |
| 1975 | 1375.51 |
| 1976 | 1401.29 |
| 1977 | 1427.35 |
| 1978 | 1453.37 |
| 1979 | 1478.89 |
| 1980 | 1503.58 |
| 1981 | 1527.28 |
| 1982 | 1550.12 |
| 1983 | 1572.46 |
| 1984 | 1594.85 |
| 1985 | 1617.63 |
| 1986 | 1640.89 |
| 1987 | 1664.40 |
| 1988 | 1687.82 |
| 1989 | 1710.68 |
| 1990 | 1732.58 |
| 1991 | 1753.57 |
| 1992 | 1773.68 |
| 1993 | 1792.48 |
| 1994 | 1809.45 |
| 1995 | 1824.29 |
| 1996 | 1836.73 |
| 1997 | 1847.09 |
| 1998 | 1856.46 |
| 1999 | 1866.33 |
| 2000 | 1877.76 |
| 2001 | 1891.17 |
| 2002 | 1906.25 |
| 2003 | 1922.40 |
| 2004 | 1938.72 |
| 2005 | 1954.50 |
| 2006 | 1969.60 |
| 2007 | 1984.20 |
| 2008 | 1998.40 |
| 2009 | 2012.35 |
| 2010 | 2026.17 |
| 2011 | 2039.85 |
| 2012 | 2042.50 |
| 2013 | 2058.50 |
| 2014 | 2077.80 |
| 2015 | 2097.00 |
| 2016 | 2120.30 |
| 2017 | 2144.40 |
| 2018 | 2167.00 |
| 2019 | 2180.30 |
| 2020 | 2191.90 |
| 2021 | 2215.60 |
2021年，斯里兰卡人口总数为2215.6万人，比上年增加约24万人。
