| Koloni mahkota (Pra-Federasi) |
| Tahun | Populasi |
Tahun | Populasi |
| 1788 |
859 |
1848 |
332,328 |
| 1798 |
4,588 |
1858 |
1,050,828 |
| 1808 |
10,263 |
1868 |
1,539,552 |
| 1818 |
25,859 |
1878 |
2,092,164 |
| 1828 |
58,197 |
1888 |
2,981,677 |
| 1838 |
151,868 |
1898 |
3,664,715 |
|
| Tahun | Populasi | % Perubahan |
| 1901 |
3,788,123 |
– |
| 1906 |
4,059,083 |
7.2 |
| 1911 |
4,489,545 |
10.6 |
| 1916 |
4,943,173 |
10.1 |
| 1921 |
5,455,136 |
10.4 |
| 1926 |
6,056,360 |
11.0 |
| 1931 |
6,526,485 |
7.8 |
| 1936 |
6,778,372 |
3.4 |
|
| Tahun | Populasi | % Perubahan |
| 1941 |
7,109,898 |
4.9 |
| 1946 |
7,465,157 |
5.0 |
| 1951 |
8,421,775 |
12.8 |
| 1956 |
9,425,563 |
11.9 |
| 1961 |
10,548,267 |
11.9 |
| 1966 |
11,599,498 |
10.0 |
| 1971 |
13,067,265 |
12.7 |
| 1976 |
14,033,083 |
7.4 |
|
| Tahun | Populasi | % Perubahan |
| 1981 |
14,923,260 |
6.3 |
| 1986 |
16,018,350 |
7.3 |
| 1991 |
17,284,036 |
12.8 |
| 1996 |
18,310,714 |
5.9 |
| 2001 |
19,413,240 |
6.0 |
| 2006 |
20,848,760 |
7.4 |
| 2011 |
21,507,717 |
3.2 |
| 2014 (perkiraan) |
23,500,000 |
9.3 |
|