| Year | Pop. | ±% p.a. |
|---|
| 1793 | 9,000 | — |
|---|
| 1800 | 8,235 | −1.26% |
|---|
| 1806 | 8,678 | +0.88% |
|---|
| 1821 | 9,647 | +0.71% |
|---|
| 1831 | 9,927 | +0.29% |
|---|
| 1836 | 10,137 | +0.42% |
|---|
| 1841 | 10,713 | +1.11% |
|---|
| 1846 | 10,519 | −0.36% |
|---|
| 1851 | 10,830 | +0.58% |
|---|
| 1856 | 10,985 | +0.28% |
|---|
| 1861 | 10,605 | −0.70% |
|---|
| 1866 | 11,093 | +0.90% |
|---|
| 1872 | 11,679 | +0.86% |
|---|
| 1876 | 12,924 | +2.56% |
|---|
| 1881 | 13,190 | +0.41% |
|---|
| 1886 | 13,293 | +0.16% |
|---|
| 1891 | 14,253 | +1.40% |
|---|
| 1896 | 14,437 | +0.26% |
|---|
| | Year | Pop. | ±% p.a. |
|---|
| 1901 | 14,627 | +0.26% |
|---|
| 1906 | 14,838 | +0.29% |
|---|
| 1911 | 16,294 | +1.89% |
|---|
| 1921 | 16,208 | −0.05% |
|---|
| 1926 | 18,093 | +2.22% |
|---|
| 1931 | 18,066 | −0.03% |
|---|
| 1936 | 18,117 | +0.06% |
|---|
| 1946 | 18,250 | +0.07% |
|---|
| 1954 | 22,022 | +2.38% |
|---|
| 1962 | 24,525 | +1.35% |
|---|
| 1968 | 27,188 | +1.73% |
|---|
| 1975 | 29,295 | +1.07% |
|---|
| 1982 | 26,889 | −1.22% |
|---|
| 1990 | 26,577 | −0.15% |
|---|
| 1999 | 24,949 | −0.70% |
|---|
| 2009 | 24,906 | −0.02% |
|---|
| 2014 | 23,312 | −1.31% |
|---|
| 2020 | 23,611 | +0.21% |
|---|
|