Mairs family name history and map
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Mairs in 1911 Ireland
The 1911 Census recorded 264 people named Mairs in Ireland; roughly one in every 17,000 people carried the name. The name was split fairly evenly between men and women: 141 men and 123 women.
Counties with Mairs in Ireland
The Mairses were heavily concentrated in Antrim, home to 75% of them (198 people). Next came Down (28), Derry (20), Mayo (8) and Westmeath (4).

Mairs average age in 1911
The average Mairs in 1911 was 29.4 years old, 26.5 for men and 32.8 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.
Mairs literacy in 1911
Of the Mairses whose literacy was recorded, 77.7% could both read and write, 4.6% could read but not write, and 17.7% could do neither. Women came out slightly ahead, 84.4% reading and writing against 71.7% of men. 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.
Mairs common first names
The most common male names were James (21), William, John, Thomas and David. For women it was Mary (13), followed by Jane, Sarah, Martha and Agnes.
Mairs occupations in 1911
The most common entry on a Mairs's census form was "Scholar"; 19.7% (52) were children at school. Among the rest, the most common occupations were farmer (12.1%), textile worker (7.6%), general labourer (4.2%) and shopkeeper / shop assistant / dealer (4.2%). Grouped by sector, agriculture accounted for 14.8% of all Mairses, followed by textiles & clothing, retail & commerce and general labourers.
What religion is Mairs?
Most Mairses, 64.8%, were Presbyterian. The remainder were mostly Anglican (19.3%), Plymouth Brethren (6.4%), Congregationalist (3%) and Methodist (3%).
Visitor Notes
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Added by
Pete F
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Mairs statistics (1911)
Number: 264
Rank: 2,090
Average Age: 29
Mairsin the USA (2020)
Number: 721
Rank: 33,925
Note: If there were less than 100 in the USA census it will show as zero.
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