| Table 4 Housing & Population In Portlaw 1821 - 1891 | |||||
| Date | Population | Houses (Inhabited) | Houses (Uninhabited) | Houses Being Built | |
| 1821 | 395 | 71 | 1 | 0 | |
| 1831 | 1618 | N/A | N/A | N/A | |
| 1841 | 3674 | 458 | - | 31 | |
| 1851 | 4351 | 541 | 16 | 3 | |
| 1861 | 3852 | 609 | N/A | N/A | |
| 1871 | 3774 | 580 | 1 | 0 | |
| 1881 | 1891 | 517 | N/A | N/A | |
| 1891 | 1394 | 308 | 144 | 0 | |
| Source: Reports On Censuses Data 1821 - 1891 | |||||