↑ The 2011 population of the Republic of Ireland was 4,588,252 and that of Northern Ireland in 2011 was 1,810,863. These are Census data from the official governmental statistics agencies in the respective jurisdictions:
↑ The figure for Northern Ireland from the 2001 Census is somewhat ambiguous, as it covers people who have "some knowledge of Irish". Out of the 167,487 people who claimed to have "some knowledge", 36,479 of them could understand it when spoken, but couldn't speak it themselves.
↑ Effectively extinct as a spoken language in 1777. Language revived from 1904, though a tiny 0.1% percent is able to hold a limited conversion in Cornish.
