Clark family name history and map
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Clark in 1911 Ireland
The 1911 Census recorded 869 people named Clark in Ireland; roughly one in every 5,100 people carried the name. The name was split fairly evenly between men and women: 425 men and 438 women. (A small number, 6, had no sex recorded.)
Counties with Clark in Ireland
Antrim had the largest share of Clarks, 21.1% (183 people). Next came Down (171), Dublin (113), Derry (64) and Cork (44).

Clark average age in 1911
The average Clark in 1911 was 28.6 years old, 28.9 for men and 28.4 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.
Clark literacy in 1911
Of the Clarks whose literacy was recorded, 81.7% could both read and write, 3.7% could read but not write, and 14.6% could do neither. Men came out slightly ahead, 83.2% reading and writing against 80.2% 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.
Clark common first names
The most common male names were William (44), James, John, Robert and Thomas. For women it was Mary (58), followed by Annie, Margaret, Jane and Sarah.
Clark occupations in 1911
The most common entry on a Clark's census form was "Scholar"; 16% (139) were children at school. Among the rest, the most common occupations were farmer (6.1%), domestic servant (4.8%), general labourer (3.9%) and farm labourer (3.5%). Grouped by sector, agriculture accounted for 10.5% of all Clarks, followed by domestic service, textiles & clothing and general labourers.
What religion is Clark?
The largest religious group among Clarks was Anglican, at 34.5%. The remainder were mostly Roman Catholic (29.8%), Presbyterian (24.4%), Methodist (3.1%) and Baptist (1.8%).
Visitor Notes
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Added by
Pete F
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Clark statistics (1911)
Number: 869
Rank: 882
Average Age: 29
Clarkin the USA (2020)
Number: 539,661
Rank: 28
Note: If there were less than 100 in the USA census it will show as zero.
Ref: clark
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