Cogan family name history and map
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Cogan in 1911 Ireland
The 1911 Census recorded 523 people named Cogan in Ireland; roughly one in every 8,400 people carried the name. The name was split fairly evenly between men and women: 259 men and 264 women.
Counties with Cogan in Ireland
Cork was Cogan country: 43.8% of them (229 people) lived there in 1911. Next came Dublin (81), Sligo (60), Kildare (45) and Meath (34).

Cogan average age in 1911
The average Cogan in 1911 was 28.6 years old, 27.0 for men and 30.3 for women; a touch 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.
Cogan literacy in 1911
Of the Cogans whose literacy was recorded, 87% could both read and write, 1.6% could read but not write, and 11.4% could do neither. Women came out slightly ahead, 88.3% reading and writing against 85.7% of men. 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.
Cogan common first names
The most common male names were John (33), James, Patrick, Thomas and Michael; the same five names that topped the list nationally. For women it was Mary (45), followed by Bridget, Ellen, Margaret and Catherine.
Cogan occupations in 1911
The most common entry on a Cogan's census form was "Scholar"; 23.9% (125) were children at school. Among the rest, the most common occupations were farmer (14.5%), shopkeeper / shop assistant / dealer (4.8%), general labourer (3.6%) and clerk / office worker (1.5%). Grouped by sector, agriculture accounted for 16.1% of all Cogans, followed by retail & commerce, domestic service and general labourers.
What religion is Cogan?
Cogans were overwhelmingly Roman Catholic, 97.3% of them. The remainder were mostly Anglican (1.3%), Methodist (0.2%), Non-Conformist (0.2%) and Presbyterian (0.2%).
Visitor Notes
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Added by
Pete F
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Cogan statistics (1911)
Number: 523
Rank: 1,304
Average Age: 29
Coganin the USA (2020)
Number: 3,411
Rank: 9,185
Note: If there were less than 100 in the USA census it will show as zero.

