| Year | Pop. | ±% p.a. |
|---|
| 1793 | 5,383 | — |
|---|
| 1800 | 5,437 | +0.14% |
|---|
| 1806 | 6,037 | +1.76% |
|---|
| 1821 | 6,032 | −0.01% |
|---|
| 1831 | 6,249 | +0.35% |
|---|
| 1836 | 6,379 | +0.41% |
|---|
| 1841 | 6,367 | −0.04% |
|---|
| 1846 | 6,774 | +1.25% |
|---|
| 1851 | 6,764 | −0.03% |
|---|
| 1856 | 6,498 | −0.80% |
|---|
| 1861 | 6,940 | +1.32% |
|---|
| 1866 | 7,237 | +0.84% |
|---|
| 1872 | 7,418 | +0.41% |
|---|
| 1876 | 7,922 | +1.66% |
|---|
| 1881 | 8,254 | +0.82% |
|---|
| 1886 | 8,719 | +1.10% |
|---|
| 1891 | 9,364 | +1.44% |
|---|
| 1896 | 9,718 | +0.74% |
|---|
| | Year | Pop. | ±% p.a. |
|---|
| 1901 | 9,697 | −0.04% |
|---|
| 1906 | 9,928 | +0.47% |
|---|
| 1911 | 10,692 | +1.49% |
|---|
| 1921 | 10,908 | +0.20% |
|---|
| 1926 | 11,313 | +0.73% |
|---|
| 1931 | 12,200 | +1.52% |
|---|
| 1936 | 13,361 | +1.83% |
|---|
| 1946 | 14,184 | +0.60% |
|---|
| 1954 | 16,818 | +2.15% |
|---|
| 1962 | 21,588 | +3.17% |
|---|
| 1968 | 29,408 | +5.29% |
|---|
| 1975 | 33,101 | +1.70% |
|---|
| 1982 | 33,379 | +0.12% |
|---|
| 1990 | 35,230 | +0.68% |
|---|
| 1999 | 31,849 | −1.11% |
|---|
| 2007 | 32,155 | +0.12% |
|---|
| 2012 | 31,195 | −0.60% |
|---|
| 2017 | 31,044 | −0.10% |
|---|
|