O'Byrne family name history and map
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O'Byrne in 1911 Ireland
The 1911 Census recorded 441 people named O'Byrne in Ireland; roughly one in every 10,000 people carried the name. The name was split fairly evenly between men and women: 228 men and 211 women. (A small number, 2, had no sex recorded.)
Counties with O'Byrne in Ireland
Dublin was O'Byrne country: 42.2% of them (186 people) lived there in 1911. Next came Donegal (59), Cork (36), Waterford (24) and Limerick (21).
O'Byrne average age in 1911
The average O'Byrne in 1911 was 28.6 years old, 30.8 for men and 26.2 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'Byrne literacy in 1911
Of the O'Byrnes whose literacy was recorded, 87.1% could both read and write, 2.6% could read but not write, and 10.3% could do neither. Men came out slightly ahead, 88.7% reading and writing against 85.3% 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'Byrne common first names
The most common male names were John (21), Patrick, James, Michael and William. For women it was Mary (31), followed by Elizabeth, Ellen, Annie and Catherine.
O'Byrne occupations in 1911
The most common entry on an O'Byrne's census form was "Scholar"; 23.1% (102) were children at school. Among the rest, the most common occupations were farmer (5%), shopkeeper / shop assistant / dealer (4.8%), teacher (2.9%) and carpenter / joiner (2.3%). Grouped by sector, retail & commerce accounted for 7% of all O'Byrnes, followed by agriculture, professional and textiles & clothing.
What religion is O'Byrne?
O'Byrnes were overwhelmingly Roman Catholic, 99.8% of them.
Visitor Notes
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Added by
Pete F
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O'Byrne statistics (1911)
Number: 441
Rank: 1,471
Average Age: 29
O'Byrne in the USA (2020)
Number: 1,267
Rank: 21,086
Note: If there were less than 100 in the USA census it will show as zero.
