Within the UK and Ireland, the surname Mccafferty most frequently occurs in Ireland where it is carried by 1 in every 3,116 people. The majority of those with the family name of Mccafferty are to be found living in/around Ulster (approx. 53% of all UK Mccafferty's), Leinster and Connaught. The name can also be found in Scotland with 1 in 13,747 people using it, and England with 1 in 118,602.
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