In Croatia, Karoly families are Croats (from Zagreb ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb.
Prevalence
Only a few people with faimily name Karoly live in Croatia today, in two households only. There were 10 of them in the middle of the past century, and their number decreased significantly. They are located in one Croatian city only, in Zagreb (<5).
Outside Croatia
Family name Karoly (including: Károly , Caroly and Karolly ) is present in 37 countries worldwide. The family name "Karoly " is used by some 2000 people in Hungary , about 600 in the United States , and some 200 people in Germany.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1917 in source List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia.