Townland of Coolnagoppoge
| Year | Population | Houses |
| 1841 | 144 | 30 |
| 1851 | 140 | 28 |
| 1861 | 90 | 19 |
| 1871 | 74 | 16 |
| 1881 | 40 | 12 |
| 1891 | 41 | 13 |
| 1901 | 40 | 11 |
| 1911 | 64 | 15 |
| 1926 | 63 | 12 |
These figures have been copied from the official Census of Population of Ireland for each of the years.