| Year | Pop. | ±% p.a. |
|---|
| 1793 | 5,253 | — |
|---|
| 1800 | 6,188 | +2.37% |
|---|
| 1806 | 6,102 | −0.23% |
|---|
| 1821 | 5,487 | −0.71% |
|---|
| 1831 | 5,965 | +0.84% |
|---|
| 1836 | 6,318 | +1.16% |
|---|
| 1841 | 6,347 | +0.09% |
|---|
| 1846 | 6,243 | −0.33% |
|---|
| 1851 | 6,374 | +0.42% |
|---|
| 1856 | 9,263 | +7.76% |
|---|
| 1861 | 7,673 | −3.70% |
|---|
| 1866 | 8,285 | +1.55% |
|---|
| 1872 | 8,500 | +0.43% |
|---|
| 1876 | 9,226 | +2.07% |
|---|
| 1881 | 12,160 | +5.68% |
|---|
| 1886 | 12,852 | +1.11% |
|---|
| 1891 | 13,280 | +0.66% |
|---|
| 1896 | 13,428 | +0.22% |
|---|
| | Year | Pop. | ±% p.a. |
|---|
| 1901 | 14,622 | +1.72% |
|---|
| 1906 | 14,872 | +0.34% |
|---|
| 1911 | 14,870 | −0.00% |
|---|
| 1921 | 16,210 | +0.87% |
|---|
| 1926 | 15,178 | −1.31% |
|---|
| 1931 | 15,941 | +0.99% |
|---|
| 1936 | 18,069 | +2.54% |
|---|
| 1946 | 16,851 | −0.70% |
|---|
| 1954 | 19,346 | +1.74% |
|---|
| 1962 | 21,717 | +1.46% |
|---|
| 1968 | 25,779 | +2.90% |
|---|
| 1975 | 27,226 | +0.78% |
|---|
| 1982 | 27,554 | +0.17% |
|---|
| 1990 | 27,041 | −0.23% |
|---|
| 1999 | 25,996 | −0.44% |
|---|
| 2007 | 24,321 | −0.83% |
|---|
| 2012 | 22,678 | −1.39% |
|---|
| 2017 | 21,945 | −0.65% |
|---|
|