| Year | Pop. | ±% p.a. |
|---|
| 1793 | 7,671 | — |
|---|
| 1800 | 7,598 | −0.14% |
|---|
| 1806 | 7,542 | −0.12% |
|---|
| 1821 | 7,681 | +0.12% |
|---|
| 1831 | 6,338 | −1.90% |
|---|
| 1836 | 6,512 | +0.54% |
|---|
| 1841 | 6,817 | +0.92% |
|---|
| 1846 | 7,959 | +3.15% |
|---|
| 1851 | 8,840 | +2.12% |
|---|
| 1856 | 10,104 | +2.71% |
|---|
| 1861 | 11,901 | +3.33% |
|---|
| 1866 | 15,579 | +5.53% |
|---|
| 1872 | 19,035 | +3.40% |
|---|
| 1876 | 21,746 | +3.38% |
|---|
| 1881 | 25,089 | +2.90% |
|---|
| 1886 | 27,985 | +2.21% |
|---|
| 1891 | 28,638 | +0.46% |
|---|
| 1896 | 29,603 | +0.67% |
|---|
| | Year | Pop. | ±% p.a. |
|---|
| 1901 | 29,401 | −0.14% |
|---|
| 1906 | 28,613 | −0.54% |
|---|
| 1911 | 28,625 | +0.01% |
|---|
| 1921 | 14,758 | −6.41% |
|---|
| 1926 | 21,035 | +7.35% |
|---|
| 1931 | 22,704 | +1.54% |
|---|
| 1936 | 24,049 | +1.16% |
|---|
| 1946 | 22,667 | −0.59% |
|---|
| 1954 | 24,940 | +1.20% |
|---|
| 1962 | 25,248 | +0.15% |
|---|
| 1968 | 26,916 | +1.07% |
|---|
| 1975 | 26,346 | −0.31% |
|---|
| 1982 | 24,834 | −0.84% |
|---|
| 1990 | 25,219 | +0.19% |
|---|
| 1999 | 25,273 | +0.02% |
|---|
| 2007 | 25,170 | −0.05% |
|---|
| 2012 | 25,993 | +0.65% |
|---|
| 2017 | 24,882 | −0.87% |
|---|
|