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Religion stated in Irish censuses, 1861-2016; number and percentage of total population return[ 1]
Answer(s)
1861[ nb 1]
1911[ nb 1]
1926
1971
2002
2011
2016
Christian 4,390,893 (99.75)
3,125,558 (99.55)
2,959,293 (99.57)
2,917,097 (97.95)
3,659,281 (93.42)
4,107,274 (90.76)
3,992,688 (85.13)
(Roman) Catholic 3,933,575 (89.36)
2,812,509 (89.58)
2,751,269 (92.57)
2,795,666 (93.87)
3,462,606 (88.39)
3,831,187 (84.66)
3,696,644 (78.82)
Church of Ireland and other Anglican [ nb 2] 372,723 (8.47)
249,535 (7.95)
164,215 (5.53)
97,739 (3.28)
115,611 (2.95)
124,445 (2.75)
122,612 (2.61)
Orthodox (Eastern and Oriental )
10,437 (0.27)
44,003 (0.97)
60,777 (1.3)
Christian (not further specified)
21,403 (0.55)
39,652 (0.88)
35,996 (0.77)
Presbyterian 66,172 (1.5)
45,486 (1.45)
32,429 (1.09)
16,052 (0.54)
20,582 (0.53)
22,835 (0.5)
22,188 (0.47)
Apostolic or Pentecostal 3,152 (0.08)
13,876 (0.31)
13,193 (0.28)
Evangelical 3,780 (0.1)
3,972 (0.09)
9,368 (0.2)
Jehovah's Witness 4,430 (0.11)
6,024 (0.13)
6,264 (0.13)
Methodist , Wesleyan 17,480 (0.4)
16,440 (0.52)
10,663 (0.36)
5,646 (0.19)
10,033 (0.26)
6,280 (0.14)
5,847 (0.12)
Lutheran 756 (0.03)
3,068 (0.08)
5,048 (0.11)
4,549 (0.1)
Protestant (not further specified)[ nb 2] 4,263 (0.09)
4,269 (0.09)
Baptist 943 (0.02)
1,588 (0.05)
717 (0.02)
591 (0.02)
2,265 (0.06)
3,219 (0.07)
3,642 (0.08)
Born again Christian 2,565 (0.05)
Mormon 833 (0.02)
1,202 (0.03)
1,209 (0.03)
Seventh-day Adventist 1,178 (0.03)
Society of Friends 647 (0.02)
859 (0.02)
899 (0.02)
848 (0.02)
Unitarian 473 (0.01)
Church of Christ 378 (0.01)
Jacobite 296 (0.01)
Brethren 222 (0.01)
309 (0.01)
272 (0.01)
Congregationalist 60
68
Salvation Army 52
Other religions
341 (0.01)
3,805 (0.12)
3,686 (0.12)
2,633 (0.09)
29,526 (0.75)
71,003 (1.57)
95,849 (2.04)
Muslim 19,147 (0.49)
48,130 (1.06)
62,032 (1.32)
Hindu 3,099 (0.08)
10,302 (0.23)
13,729 (0.29)
Buddhist 3,894 (0.1)
8,355 (0.18)
9,358 (0.2)
Spiritualist 2,922 (0.06)
Pagan , Pantheist 1,106 (0.03)
1,883 (0.04)
2,645 (0.06)
Jewish 341 (0.01)
3,805 (0.12)
3,686 (0.12)
2,633 (0.09)
1,790 (0.05)
1,675 (0.04)
1,921 (0.04)
Sikh 1,705 (0.04)
Baha'i 490 (0.01)
507 (0.01)
518 (0.01)
Taoist 171
Jain 134
Rastafari 114
Deist 97
Hare Krishna 91
87
Scientologist 87
Satanism 78
Kimbanguist 69
Shinto 53
Zoroastrian 35
Unificationist 60
34
Eckist 30
Theist 30
Irreligion 7,616 (0.26)
140,382 (3.58)
265,246 (5.86)
474,734 (10.12)
No religion
7,616 (0.26)
138,264 (3.53)
256,830 (5.68)
451,941 (9.64)
Lapsed (Roman) Catholic 590 (0.02)
1,268 (0.03)
8,094 (0.17)
Atheist 500 (0.01)
3,751 (0.08)
7,477 (0.16)
Agnostic 1,028 (0.03)
3,393 (0.07)
5,006 (0.11)
Jedi Knight 2,050 (0.04)
Pastafarian 92
Lapsed Church of Ireland
4
74
Unspecified
10,877 (0.25)
10,325 (0.33)
9,013 (0.3)
50,902 (1.71)
88,014 (2.25)
81,758 (1.81)
126,650 (2.7)
Not stated
46,648 (1.57)
79,094 (2.02)
68,668 (1.52)
119,349 (2.54)
Other / Other stated[ nb 3]
10,877 (0.25)
10,325 (0.33)
9,013 (0.3)
4,254 (0.14)
8,920 (0.23)
13,090 (0.29)
7,301 (0.16)
Total population
4,402,111
3,139,688
2,971,992
2,978,248
3,917,203
4,525,281
4,689,921
Notes
^ a b Pre-partition totals for the 26 counties that became the Irish Free State in 1922.
^ a b Through to 2002, answer "Protestant" was included under "Church of Ireland" (called "Protestant Episcopalian" before 1961)
^ The "other" (before 1971) or "other stated" category is not directly comparable between censuses, because later ones enumerate some answers separately which were included within "other" in earlier ones.
References
How to left-align population and pct separately in single column?
Other-compatible table values are wrong; e.g. "atheist" would be under "no religion" not "other".
