Within the UK and Ireland, the surname Mcfadden most frequently occurs in Ireland where it is carried by 1 in every 1,339 people. The majority of those with the family name of Mcfadden are to be found living in/around Ulster, Leinster and, to a lesser extent, Connaught. The name can also be found in Scotland with 1 in 17,630 people using it, and England with 1 in 99,255.
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