| Year | Pop. | ±% p.a. |
|---|
| 1800 | 927 | — |
|---|
| 1806 | 1,057 | +2.21% |
|---|
| 1821 | 1,262 | +1.19% |
|---|
| 1831 | 1,601 | +2.41% |
|---|
| 1836 | 3,200 | +14.86% |
|---|
| 1841 | 5,144 | +9.96% |
|---|
| 1846 | 7,272 | +7.17% |
|---|
| 1851 | 8,691 | +3.63% |
|---|
| 1856 | 9,496 | +1.79% |
|---|
| 1861 | 10,254 | +1.55% |
|---|
| 1866 | 11,022 | +1.45% |
|---|
| 1872 | 12,330 | +1.89% |
|---|
| 1876 | 14,419 | +3.99% |
|---|
| 1881 | 17,202 | +3.59% |
|---|
| 1886 | 17,832 | +0.72% |
|---|
| 1891 | 18,258 | +0.47% |
|---|
| 1896 | 19,916 | +1.75% |
|---|
| 1901 | 23,204 | +3.10% |
|---|
| | Year | Pop. | ±% p.a. |
|---|
| 1906 | 24,564 | +1.15% |
|---|
| 1911 | 26,800 | +1.76% |
|---|
| 1921 | 23,472 | −1.32% |
|---|
| 1926 | 26,868 | +2.74% |
|---|
| 1931 | 27,767 | +0.66% |
|---|
| 1936 | 26,478 | −0.95% |
|---|
| 1946 | 24,908 | −0.61% |
|---|
| 1954 | 27,449 | +1.22% |
|---|
| 1962 | 29,467 | +0.89% |
|---|
| 1968 | 27,973 | −0.86% |
|---|
| 1975 | 26,204 | −0.93% |
|---|
| 1982 | 21,825 | −2.58% |
|---|
| 1990 | 19,544 | −1.37% |
|---|
| 1999 | 20,360 | +0.46% |
|---|
| 2007 | 20,186 | −0.11% |
|---|
| 2012 | 20,270 | +0.08% |
|---|
| 2017 | 19,825 | −0.44% |
|---|
| 2023 | 20,665 | +0.69% |
|---|
|