1861 Census of Ireland, The Census of Ireland for the Year 1861. Part I. Area, Population and Number of Houses, by Townlands and Electoral Divisions., Table [1] : " Area, population and number of houses".

Show top level table Costello Show Mayo IrlC table
Click on the unit name for its home page

If Drill-down appears click for more detailed statistics 		Area (Acres)
[1] 		Population
Houses
In 1841
In 1851
In 1861
In 1841
In 1851
In 1861
Persons
[2] 		Persons
[3] 		Males
[4] 		Females
[5] 		Persons
[6] 		Number
[7] 		Number
[8] 		Inhabited
[9] 		Uninhabited
[10] 		Building
[11] 		Total
[12]
Costello IrlBarony Total   143,875 Show data context 48,389 Show data context 43,217 Show data context 23,228 Show data context 23,009 Show data context 46,237 Show data context 8,869 Show data context 8,144 Show data context 8,188 Show data context 80 Show data context 53 Show data context 8,321 Show data context
Knock IrlPar 11,705 Show data context 3,374 Show data context 3,174 Show data context 1,646 Show data context 1,625 Show data context 3,271 Show data context 616 Show data context 600 Show data context 578 Show data context 8 Show data context 0 Show data context 586 Show data context
Aghamore IrlPar 22,510 Show data context 7,675 Show data context 6,097 Show data context 3,371 Show data context 3,411 Show data context 6,782 Show data context 1,427 Show data context 1,241 Show data context 1,221 Show data context 4 Show data context 1 Show data context 1,226 Show data context
Annagh IrlPar 20,316 Show data context 7,904 Show data context 6,105 Show data context 3,153 Show data context 2,986 Show data context 6,139 Show data context 1,477 Show data context 1,194 Show data context 1,097 Show data context 4 Show data context 7 Show data context 1,108 Show data context
Bekan IrlPar 15,202 Show data context 5,589 Show data context 4,724 Show data context 2,447 Show data context 2,558 Show data context 5,005 Show data context 1,053 Show data context 886 Show data context 873 Show data context 9 Show data context 1 Show data context 883 Show data context
Castlemore IrlPar 8,913 Show data context 3,532 Show data context 3,301 Show data context 1,556 Show data context 1,622 Show data context 3,178 Show data context 637 Show data context 596 Show data context 548 Show data context 1 Show data context 1 Show data context 550 Show data context
Kilbeagh IrlPar 33,825 Show data context 9,963 Show data context 9,733 Show data context 5,486 Show data context 5,247 Show data context 10,733 Show data context 1,784 Show data context 1,774 Show data context 1,927 Show data context 34 Show data context 24 Show data context 1,985 Show data context
Kilcolman IrlPar 17,027 Show data context 6,655 Show data context 6,156 Show data context 3,332 Show data context 3,244 Show data context 6,576 Show data context 1,180 Show data context 1,079 Show data context 1,088 Show data context 16 Show data context 3 Show data context 1,107 Show data context
Kilmovee IrlPar 20,757 Show data context 5,844 Show data context 5,882 Show data context 3,247 Show data context 3,268 Show data context 6,515 Show data context 1,095 Show data context 1,120 Show data context 1,194 Show data context 7 Show data context 14 Show data context 1,215 Show data context
Kilturra IrlPar 6,883 Show data context 2,613 Show data context 1,912 Show data context 1,006 Show data context 1,029 Show data context 2,035 Show data context 474 Show data context 350 Show data context 376 Show data context 3 Show data context 2 Show data context 381 Show data context

Click on the triangles for all about a particular number.

Using data from this table, Vision of Britain can map the following rates for within Costello IrlBarony:

Rate Date
Rate of Population Change (% over previous 10 years) 1841
Rate of Population Change (% over previous 10 years) 1851
Houses under Construction as Percentage of All Houses 1861
Population Density (Persons per Acre) 1861
Rate of Population Change (% over previous 10 years) 1861

Comments:

1 Parishes were often divided between different Baronies, and Baronies were sometimes divided between different Counties, but this reconstruction always lists the totals for whole Parishes or Baronies. The original table also sometimes lists separate counts for 'Towns' and the remainders of Parishes, but here again we list only Parish totals.
2 The original table lists areas in Acres, Rods and Perches, but they have been converted here into decimal acres.
3 The original table also includes Poor Law and General Valuations for each area.

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.