In Croatia, Clark families are Croats (from Zagreb ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb.
Prevalence
About 10 people with faimily name Clark live in Croatia today, in three households only. They are located in one Croatian city only, in Zagreb (10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1937 in source Emigration Commission Zagreb.