Treacy family name history and map
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Treacy in 1911 Ireland
The 1911 Census recorded 2,349 people named Treacy in Ireland, about 0.054% of everyone living in the country at the time and the 378th most common surname overall. The name was split fairly evenly between men and women: 1,216 men and 1,132 women. (A small number, 1, had no sex recorded.)
Counties with Treacy in Ireland
Tipperary had the largest share of Treacys, 17.3% (406 people). Next came Galway (356), Dublin (306), Limerick (207) and Kilkenny (127).

Treacy average age in 1911
The average Treacy in 1911 was 30.3 years old, 29.4 for men and 31.2 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.
Treacy literacy in 1911
Of the Treacys whose literacy was recorded, 79.3% could both read and write, 3.5% could read but not write, and 17.1% 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.
Treacy common first names
The most common male names were John (180), Patrick, Thomas, Michael and James; the same five names that topped the list nationally. For women it was Mary (184), followed by Bridget, Margaret, Ellen and Catherine.
Treacy occupations in 1911
The most common occupation among Treacys was farmer, 19.8% of them (464 people). Next came scholar / student (19.2%), farm labourer (4.3%), general labourer (3.8%) and domestic servant (2%). Grouped by sector, agriculture accounted for 24.4% of all Treacys, followed by general labourers, domestic service and retail & commerce.
What religion is Treacy?
Treacys were overwhelmingly Roman Catholic, 94.6% of them. The remainder were mostly Anglican (4.3%), Presbyterian (0.3%) and Methodist (0.1%).
Visitor Notes
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Added by
Pete F
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Treacy statistics (1911)
Number: 2,349
Rank: 378
Average Age: 30
Treacyin the USA (2020)
Number: 1,666
Rank: 16,694
Note: If there were less than 100 in the USA census it will show as zero.

