McCosker family name history and map
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McCosker in 1911 Ireland
The 1911 Census recorded 52 people named McCosker in Ireland; roughly one in every 84,000 people carried the name. There were noticeably more men than women recorded: 29 men to 23 women.
Counties with McCosker in Ireland
Donegal was McCosker country: 48.1% of them (25 people) lived there in 1911. Next came Tyrone (13), Derry (12), Antrim (1) and Waterford (1).

McCosker average age in 1911
The average McCosker in 1911 was 25.7 years old, 25.3 for men and 26.3 for women; noticeably younger than the national averages of 29.6 for men and 30.5 for women. That low figure reflects just how many children there were in Edwardian Ireland, along with high infant mortality and the limits of public health at the time. For comparison, average life expectancy in Ireland today is around 83.
McCosker literacy in 1911
Of the McCoskers whose literacy was recorded, 68% could both read and write, 8% could read but not write, and 24% could do neither. Men came out slightly ahead, 70.4% reading and writing against 65.2% of women. Bear in mind these figures include young children; the census itself only counted people aged nine and over when calculating illiteracy, on the grounds that it was unfair to label a child illiterate before they'd had a chance to learn.
McCosker common first names
The most common male names were James (6), George, John, John Joseph and Felix. For women it was Annie (5), followed by Mary, Ellen, Sarah and Anne.
McCosker occupations in 1911
The most common occupation among McCoskers was painter / decorator, 23.1% of them (12 people). Next came scholar / student (15.4%), farmer (13.5%), domestic servant (5.8%) and teacher (3.8%). Grouped by sector, building & construction accounted for 23.1% of all McCoskers, followed by agriculture, domestic service and professional.
What religion is McCosker?
McCoskers were overwhelmingly Roman Catholic, 90.4% of them. The remainder were mostly Anglican (9.6%).
Visitor Notes
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Pete F
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McCosker statistics (1911)
Number: 52
Rank: 5,653
Average Age: 26
McCosker in the USA (2020)
Number: 234
Rank: 85,854
Note: If there were less than 100 in the USA census it will show as zero.
Ref: mccosker
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