| Year | Pop. | ±% p.a. |
|---|
| 1793 | 7,675 | — |
|---|
| 1800 | 7,229 | −0.85% |
|---|
| 1806 | 8,126 | +1.97% |
|---|
| 1821 | 7,765 | −0.30% |
|---|
| 1831 | 8,149 | +0.48% |
|---|
| 1836 | 8,424 | +0.67% |
|---|
| 1841 | 9,152 | +1.67% |
|---|
| 1846 | 10,143 | +2.08% |
|---|
| 1851 | 9,477 | −1.35% |
|---|
| 1856 | 7,875 | −3.64% |
|---|
| 1861 | 10,208 | +5.33% |
|---|
| 1866 | 11,099 | +1.69% |
|---|
| 1872 | 10,404 | −1.07% |
|---|
| 1876 | 11,089 | +1.61% |
|---|
| 1881 | 11,112 | +0.04% |
|---|
| 1886 | 11,850 | +1.29% |
|---|
| 1891 | 12,074 | +0.38% |
|---|
| 1896 | 12,373 | +0.49% |
|---|
| | Year | Pop. | ±% p.a. |
|---|
| 1901 | 13,240 | +1.36% |
|---|
| 1906 | 14,334 | +1.60% |
|---|
| 1911 | 14,458 | +0.17% |
|---|
| 1921 | 14,391 | −0.05% |
|---|
| 1926 | 17,865 | +4.42% |
|---|
| 1931 | 18,705 | +0.92% |
|---|
| 1936 | 20,090 | +1.44% |
|---|
| 1946 | 18,174 | −1.00% |
|---|
| 1954 | 20,484 | +1.51% |
|---|
| 1962 | 23,150 | +1.54% |
|---|
| 1968 | 25,890 | +1.88% |
|---|
| 1975 | 30,009 | +2.13% |
|---|
| 1982 | 30,213 | +0.10% |
|---|
| 1990 | 29,829 | −0.16% |
|---|
| 1999 | 29,453 | −0.14% |
|---|
| 2007 | 28,471 | −0.42% |
|---|
| 2012 | 28,309 | −0.11% |
|---|
| 2017 | 28,530 | +0.16% |
|---|
|