Jacob family name history and map
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Jacob in 1911 Ireland
The 1911 Census recorded 379 people named Jacob in Ireland; roughly one in every 12,000 people carried the name. The name was split fairly evenly between men and women: 188 men and 190 women. (A small number, 1, had no sex recorded.)
Counties with Jacob in Ireland
Dublin had the largest share of Jacobs, 18.2% (69 people). Next came Kildare (47), Waterford (42), Wexford (40) and Donegal (38).

Jacob average age in 1911
The average Jacob in 1911 was 30.0 years old, 28.0 for men and 32.1 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.
Jacob literacy in 1911
Of the Jacobs whose literacy was recorded, 80.6% could both read and write, 2.5% could read but not write, and 16.9% 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.
Jacob common first names
The most common male names were John (17), James, Thomas, Joseph and Edward. For women it was Mary (15), followed by Margaret, Elizabeth, Bridget and Ellen.
Jacob occupations in 1911
The most common entry on a Jacob's census form was "Scholar"; 16.4% (62) were children at school. Among the rest, the most common occupations were farmer (10.3%), shopkeeper / shop assistant / dealer (6.6%), farm labourer (2.4%) and domestic servant (1.8%). Grouped by sector, agriculture accounted for 14% of all Jacobs, followed by retail & commerce, domestic service and professional.
What religion is Jacob?
The largest religious group among Jacobs was Roman Catholic, at 49.3%. The remainder were mostly Anglican (34%), Quaker (5.8%), Presbyterian (5.5%) and Jewish (2.1%).
Visitor Notes
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Added by
Pete F
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Jacob statistics (1911)
Number: 379
Rank: 1,636
Average Age: 30
Jacobin the USA (2020)
Number: 25,360
Rank: 1,367
Note: If there were less than 100 in the USA census it will show as zero.
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