O'Farrell family name history and map
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O'Farrell in 1911 Ireland
The 1911 Census recorded 752 people named O'Farrell in Ireland; roughly one in every 5,800 people carried the name. The name was split fairly evenly between men and women: 374 men and 377 women. (A small number, 1, had no sex recorded.)
Counties with O'Farrell in Ireland
Dublin had the largest share of O'Farrells, 22.3% (168 people). Next came Limerick (136), Cork (58), Antrim (40) and Galway (35).

O'Farrell average age in 1911
The average O'Farrell in 1911 was 29.8 years old, 28.4 for men and 31.1 for women; almost exactly in line with 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.
O'Farrell literacy in 1911
Of the O'Farrells whose literacy was recorded, 87.2% could both read and write, 2.1% could read but not write, and 10.7% could do neither. The figures were much the same for men and 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.
O'Farrell common first names
The most common male names were John (35), Patrick, Michael, James and Thomas; the same five names that topped the list nationally. For women it was Mary (45), followed by Margaret, Ellen, Bridget and Catherine.
O'Farrell occupations in 1911
The most common entry on an O'Farrell's census form was "Scholar"; 20.9% (157) were children at school. Among the rest, the most common occupations were farmer (9%), shopkeeper / shop assistant / dealer (7%), clergy / religious (2.4%) and teacher (2.1%). Grouped by sector, agriculture accounted for 10.9% of all O'Farrells, followed by retail & commerce, professional and textiles & clothing.
What religion is O'Farrell?
O'Farrells were overwhelmingly Roman Catholic, 98.3% of them. The remainder were mostly Anglican (0.7%), Agnostic (0.1%) and No Religion (0.1%).
Visitor Notes
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Pete F
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O'Farrell statistics (1911)
Number: 752
Rank: 976
Average Age: 30
O'Farrell in the USA (2020)
Number: 2,105
Rank: 13,760
Note: If there were less than 100 in the USA census it will show as zero.

