Within the UK and Ireland, the surname Cornelius most frequently occurs in Wales where it is carried by 1 in 9,370 people. The majority of those with the family name of Cornelius are to be found living in/around City and County of Swansea (approx. 4% of all UK Cornelius's), City and County of Cardiff and Bridgend County Borough. The name can also be found in England with 1 in 26,110 people using it.
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