1821 Census of Ireland, Abstracts of the Answers and Returns Made pursuant to an Act of the United Parliament, passed in the 55th Year of the Reign of His Late Majesty George the Third, Intituled, "An Act for taking an Account of the Population of Ireland, and for ascertaining the Increase or "Diminution thereof.": Preliminary Observations. Enumeration Abstract. Appendix., Table [2] : " Ages of Persons".

List for top level	Ulster	List for Ireland Dep

click on unit name for its home page If appears click for more detailed statistics		Ages of Persons
		5 and Under. [1]	5 To 10. [2]	10 To 15. [3]	15 To 20. [4]	20 To 30. [5]	30 To 40. [6]	40 To 50. [7]	50 To 60. [8]	60 To 70. [9]	70 To 80. [10]	80 To 90. [11]	90 To 100. [12]	100 and Upwards. [13]	Unascertained. [14]	TOTAL. [15]
Ulster IProv Total		295,366	263,127	248,956	250,084	343,009	215,374	159,166	123,027	65,835	24,659	5,733	669	94	3,395	1,998,494
Antrim IrlC		39,999	33,856	32,072	29,718	46,272	28,758	21,299	15,743	9,756	3,899	981	87	19	401	262,860
Armagh IrlC		29,505	25,167	24,105	24,063	35,266	21,005	15,650	12,283	6,996	2,490	562	68	13	254	197,427
County of the Town of Carrickfergus IrlC		1,304	994	947	776	1,372	967	684	479	346	127	26	1	0	0	8,023
Cavan IrlC		29,734	27,331	25,173	26,201	33,399	20,655	13,859	11,572	5,068	1,632	308	44	6	94	195,076
Donegal IrlC		37,165	34,633	31,022	31,404	39,545	27,240	19,487	15,521	8,075	2,855	609	74	20	620	248,270
Down IrlC		49,344	41,946	38,988	36,646	56,511	34,906	26,709	20,031	12,910	5,263	1,325	166	13	652	325,410
Fermanagh IrlC		19,093	17,571	16,724	17,222	22,317	14,202	10,081	7,832	3,841	1,336	362	56	6	354	130,997
Londonderry IrlC		27,415	25,202	24,576	25,414	33,158	21,106	16,052	12,050	5,846	2,292	567	63	4	124	193,869
Monaghan IrlC		25,922	22,804	21,931	23,482	30,299	18,326	14,233	10,980	4,625	1,589	313	40	1	152	174,697
Tyrone IrlC		35,885	33,623	33,418	35,158	44,870	28,209	21,112	16,536	8,372	3,176	680	70	12	744	261,865

Comments:

1	This table provides data for all Provinces, Counties and Baronies, but Parishes were included only wirhin Cities.

Click on the triangles for all about a particular number.

This website does not try to provide an exact replica of the original printed census tables, which often had thousands of rows and far more columns than will fit on our web pages. Instead, we let you drill down from national totals to the most detailed data available. The column headings are those that appeared in the original printed report. The numbers presented here, which are the same ones we use to create statistical maps and graphs, come from the census table and have usually been carefully checked.

The system can only hold statistics for units listed in our administrative gazetteer, so some rows from the original table may be missing. Sometimes big low-level units, like urban parishes, were divided between more than one higher-level units, like Registration sub-Districts. This is why some pages will give a higher figure for a lower-level unit: it covers the whole of the lower-level unit, not just the part within the current higher-level unit.

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