Ireland's Loss of Population

From "The Outlook in Ireland: The Case for Devolution and Conciliation" by The Earl of Dunraven, 1907

Table showing the population of Ireland in comparison with that of the United Kingdom

Census of 5th April	Great Britain	Ireland	United Kingdom	Ireland. Per cent of United Kingdom
1821	14,091,757	6,801,827	20,893,584	32.5
1831	16,361,183	7,767,401	24,128,584	32.0
1841	18,534,332	8,175,124	26,709,456	31.0
1851	20,816,351	6,574,278	27,390,629	24.0
1861	23,128,518	5,798,967	28,927,485	20.0
1871	26,072,284	5,412,377	31,484,661	17.0
1881	29,710,012	5,174,836	34,884,848	15.0
1891	33,028,172	4,704,750	37,732,922	12.5
---	---	---	---	---
1899	36,024,438	4,535,516	40,559,954	11.2
1900 *	36,683,879	4,466,326	41,150,205	10.85
1901	37,103,328	4,443,370	41,546,698	10.69
1902	37,528,925	4,432,287	41,961,212	10.56
1903	37,957,561	4,414,995	42,372,556	10.42
1904	38,391,090	4,398,462	42,789,552	10.28
1905	38,829,580	4,388,107	43,217,687	10.15

* The estimates of population in 1900 and subsequent years are based on the results of the census of 1901. For 1899 the estimate formerly made on the results of the Census of 1891 is retained.

Other articles on the Census and Population of Ireland:--

Census of Ireland (1821, 1831 and 1841 compared)
1861 Census: Decline in the Population of Ireland
Population of Ireland (1672-1821)
Population of Ireland in 1831 (by County)
Decrease of Population