Within the UK and Ireland, the surname Corcoran most frequently occurs in Ireland where it is carried by 1 in every 615 people. The majority of those with the family name of Corcoran are to be found living in/around Leinster (approx. 29% of all UK Corcoran's), Munster and Connaught. The name can also be found in England with 1 in 9,645 people using it.
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