Its languages of origin include Chinese, German (via its Serbo-Croatian spelling), and Korean.
Roughly 48,100 people, or 1.9% of the Chinese Singaporean population at the time, bore the surname Koh.
[6] According to the 2000 South Korean census, there were 435,839 people in 135,488 households with the surname spelled Go in Revised Romanization.
[8] The 2010 United States Census found 3,595 people with the surname Koh, making it the 9,090th-most-common name in the country.
In both censuses, slightly fewer than nine-tenths of the bearers of the surname identified Asian.