| Year | Pop. | ±% p.a. |
|---|
| 1793 | 11,515 | — |
|---|
| 1800 | 15,028 | +3.88% |
|---|
| 1806 | 15,066 | +0.04% |
|---|
| 1821 | 15,499 | +0.19% |
|---|
| 1831 | 17,000 | +0.93% |
|---|
| 1836 | 18,197 | +1.37% |
|---|
| 1841 | 18,739 | +0.59% |
|---|
| 1846 | 18,604 | −0.14% |
|---|
| 1851 | 18,727 | +0.13% |
|---|
| 1856 | 20,037 | +1.36% |
|---|
| 1861 | 20,831 | +0.78% |
|---|
| 1866 | 20,775 | −0.05% |
|---|
| 1872 | 21,344 | +0.45% |
|---|
| 1876 | 20,923 | −0.50% |
|---|
| 1881 | 22,254 | +1.24% |
|---|
| 1886 | 23,015 | +0.67% |
|---|
| 1891 | 23,225 | +0.18% |
|---|
| 1896 | 23,674 | +0.38% |
|---|
| | Year | Pop. | ±% p.a. |
|---|
| 1901 | 23,897 | +0.19% |
|---|
| 1906 | 23,329 | −0.48% |
|---|
| 1911 | 23,775 | +0.38% |
|---|
| 1921 | 23,559 | −0.09% |
|---|
| 1926 | 25,721 | +1.77% |
|---|
| 1931 | 25,935 | +0.17% |
|---|
| 1936 | 27,830 | +1.42% |
|---|
| 1946 | 32,752 | +1.64% |
|---|
| 1954 | 33,167 | +0.16% |
|---|
| 1962 | 37,512 | +1.55% |
|---|
| 1968 | 48,469 | +4.36% |
|---|
| 1975 | 62,267 | +3.64% |
|---|
| 1982 | 58,203 | −0.96% |
|---|
| 1990 | 57,012 | −0.26% |
|---|
| 1999 | 56,663 | −0.07% |
|---|
| 2007 | 58,576 | +0.42% |
|---|
| 2012 | 57,607 | −0.33% |
|---|
| 2017 | 58,707 | +0.38% |
|---|
|