| Year | Pop. | ±% p.a. |
|---|
| 1793 | 6,932 | — |
|---|
| 1800 | 6,046 | −1.93% |
|---|
| 1806 | 6,379 | +0.90% |
|---|
| 1821 | 6,319 | −0.06% |
|---|
| 1831 | 6,889 | +0.87% |
|---|
| 1836 | 6,805 | −0.25% |
|---|
| 1841 | 7,448 | +1.82% |
|---|
| 1846 | 7,727 | +0.74% |
|---|
| 1851 | 7,692 | −0.09% |
|---|
| 1856 | 7,720 | +0.07% |
|---|
| 1861 | 8,264 | +1.37% |
|---|
| 1866 | 8,178 | −0.21% |
|---|
| 1872 | 8,410 | +0.47% |
|---|
| 1876 | 9,315 | +2.59% |
|---|
| 1881 | 10,374 | +2.18% |
|---|
| 1886 | 10,917 | +1.03% |
|---|
| 1891 | 11,098 | +0.33% |
|---|
| 1896 | 11,627 | +0.94% |
|---|
| | Year | Pop. | ±% p.a. |
|---|
| 1901 | 12,404 | +1.30% |
|---|
| 1906 | 13,607 | +1.87% |
|---|
| 1911 | 15,309 | +2.39% |
|---|
| 1921 | 16,795 | +0.93% |
|---|
| 1926 | 20,141 | +3.70% |
|---|
| 1931 | 19,956 | −0.18% |
|---|
| 1936 | 20,073 | +0.12% |
|---|
| 1946 | 22,081 | +0.96% |
|---|
| 1954 | 22,376 | +0.17% |
|---|
| 1962 | 23,445 | +0.59% |
|---|
| 1968 | 27,154 | +2.48% |
|---|
| 1975 | 26,982 | −0.09% |
|---|
| 1982 | 25,508 | −0.80% |
|---|
| 1990 | 24,556 | −0.47% |
|---|
| 1999 | 27,808 | +1.39% |
|---|
| 2007 | 25,982 | −0.85% |
|---|
| 2012 | 25,694 | −0.22% |
|---|
| 2017 | 24,895 | −0.63% |
|---|
|