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Population of Ireland 1841-2020

From these figures you can see the dramatic drop in population from the time of the famine from 1845 to 1849. This is particularly obvious for the republic of Ireland with a drop of 1.4 million from 1841-1851, with the population continuing to decrease to a low of 2,818,341 in 1961 when it slowly started to increase to the present day population just shy of 5 million. In contrast the Population of N Ireland has now surpassed its pre-famine Population.

Irish Republic Northern Ireland
1841 6,528,799 1,648,945
1851 5,111,557 1,442,517
1861 4,402,111 1,396,453
1871 4,053,187 1,359,190
1881 3,870,020 1,304,816
1891 3,468,694 1,236,056
1901 3,221,823 1,236,952
1911 3,139,688 1,250,531
1926 2,971,992 1,256,561
1936 2,968,420
1946 2,955,107
1951 2,960,593 1,370,921
1956 2,898,264
1961 2,818,341 1,425,042
1966 2,884,002
1971 2,978,248 1,536,065
1979 3,368,217
1981 3,443,405 1,543,000
1986 3,540,643
1991 3,525,719 1,607,300
1996 3,626,087
2002 3,917,203 1,685,267
2006 4,239,848
2011 4,588,252 1,810,863
2016 4,761,865
2019 1,891,100
2020 4,937,786