Age Structure (Irish 1821 classification)

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Age Groups used in 1821 Irish Census 1821
0 to 4 4,409 Show data context
5 to 9 4,315 Show data context
10 to 14 4,076 Show data context
15 to 19 4,321 Show data context
20 to 29 5,406 Show data context
30 to 39 3,490 Show data context
40 to 49 2,500 Show data context
50 to 59 2,035 Show data context
60 to 69 898 Show data context
70 to 79 378 Show data context
80 to 89 96 Show data context
90 to 99 9 Show data context
100 Up 0 Show data context
Age unknown 35 Show data context
Date: Source:
1821 1821 Census of Ireland, Abstract of answers, Table [2] , 'Ages of Persons'

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nCube definition


The 1831 census provided information at parish-level on the number of males aged over 20 in each of nine occupational categories. Here we re-organise those nine categories into four to get some sense of the distribution of agriculture, of the new manufacturing industries and of the urban "trades". "Agriculture" is quite well-defined here, combining large- and small-scale farmers with agricultural labourers. "Manufacturing" is narrowly defined, excluding labourers and "capitalists", and focuses on the new factory-...


based industries. "Retail and handicrafts" covers the many workers in small businesses who sold products at the front of their shop and made them at the back. The "other" category covers "capitalists" and professionals, labourers outside agriculture, servants and "others".


How to reference this page:

GB Historical GIS / University of Portsmouth, Keenaght IrlBarony through time | Population Statistics | Age Structure (Irish 1821 classification), A Vision of Britain through Time.

URL: https://www.visionofbritain.org.uk/unit/12840846/cube/AGE_IRL1821

Date accessed: 20th October 2024