Within the UK and Ireland, the surname Koh most frequently occurs in England where it is carried by just 1 in every 124,677 people. The majority of those with the family name of Koh are to be found living in/around Greater London (approx. 53% of all UK Koh's), Surrey and Merseyside. The name can also be found in Scotland with just 1 in every 271,500 people using it, and Ireland with 1 in 345,000.
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