O'Flaherty family name history and map
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O'Flaherty in 1911 Ireland
The 1911 Census recorded 712 people named O'Flaherty in Ireland; roughly one in every 6,200 people carried the name. There were noticeably more women than men recorded: 391 women to 318 men. (A small number, 3, had no sex recorded.)
Counties with O'Flaherty in Ireland
Galway had the largest share of O'Flahertys, 18.3% (130 people). Next came Dublin (122), Cork (103), Kerry (96) and Limerick (57).

O'Flaherty average age in 1911
The average O'Flaherty in 1911 was 28.1 years old, 28.8 for men and 27.5 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.
O'Flaherty literacy in 1911
Of the O'Flahertys whose literacy was recorded, 80.1% could both read and write, 3.6% could read but not write, and 16.3% could do neither. Men came out slightly ahead, 81.7% reading and writing against 79.1% 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.
O'Flaherty common first names
The most common male names were Patrick (36), John, Michael, William and James. For women it was Mary (45), followed by Margaret, Bridget, Annie and Elizabeth.
O'Flaherty occupations in 1911
The most common entry on an O'Flaherty's census form was "Scholar"; 22.3% (159) were children at school. Among the rest, the most common occupations were farmer (8.6%), shopkeeper / shop assistant / dealer (3.9%), domestic servant (3.1%) and teacher (2.5%). Grouped by sector, agriculture accounted for 10.3% of all O'Flahertys, followed by retail & commerce, domestic service and professional.
What religion is O'Flaherty?
O'Flahertys were overwhelmingly Roman Catholic, 95.5% of them. The remainder were mostly Anglican (3.5%) and Presbyterian (0.4%).

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Pete F
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O'Flaherty statistics (1911)
Number: 712
Rank: 1,016
Average Age: 28
O'Flaherty in the USA (2020)
Number: 1,356
Rank: 19,869
Note: If there were less than 100 in the USA census it will show as zero.