Within the UK and Ireland, the surname Flack most frequently occurs in England where it is carried by 1 in 12,122 people. The majority of those with the family name of Flack are to be found living in/around Greater London (approx. 13% of all UK Flack's), Essex and Cambridgeshire. The name can also be found in Ireland with 1 in 21,467 people using it.
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