| Year | Pop. | ±% p.a. |
|---|
| 1793 | 800 | — |
|---|
| 1800 | 775 | −0.45% |
|---|
| 1806 | 825 | +1.05% |
|---|
| 1821 | 1,265 | +2.89% |
|---|
| 1831 | 1,455 | +1.41% |
|---|
| 1836 | 2,116 | +7.78% |
|---|
| 1841 | 2,379 | +2.37% |
|---|
| 1846 | 2,707 | +2.62% |
|---|
| 1851 | 3,105 | +2.78% |
|---|
| 1856 | 3,930 | +4.83% |
|---|
| 1861 | 4,655 | +3.44% |
|---|
| 1866 | 4,677 | +0.09% |
|---|
| 1872 | 4,981 | +1.06% |
|---|
| 1876 | 6,250 | +5.84% |
|---|
| 1881 | 7,680 | +4.21% |
|---|
| 1886 | 10,273 | +5.99% |
|---|
| 1891 | 10,688 | +0.80% |
|---|
| 1896 | 11,737 | +1.89% |
|---|
| | Year | Pop. | ±% p.a. |
|---|
| 1901 | 13,948 | +3.51% |
|---|
| 1906 | 14,929 | +1.37% |
|---|
| 1911 | 16,682 | +2.25% |
|---|
| 1921 | 17,478 | +0.47% |
|---|
| 1926 | 17,959 | +0.54% |
|---|
| 1931 | 18,910 | +1.04% |
|---|
| 1936 | 19,474 | +0.59% |
|---|
| 1946 | 19,953 | +0.24% |
|---|
| 1954 | 20,798 | +0.52% |
|---|
| 1962 | 21,098 | +0.18% |
|---|
| 1968 | 22,876 | +1.36% |
|---|
| 1975 | 22,401 | −0.30% |
|---|
| 1982 | 22,876 | +0.30% |
|---|
| 1990 | 22,600 | −0.15% |
|---|
| 1999 | 22,332 | −0.13% |
|---|
| 2007 | 21,970 | −0.20% |
|---|
| 2012 | 22,089 | +0.11% |
|---|
| 2017 | 21,995 | −0.09% |
|---|
|