In Croatia, Krulj families are mainly Croats (from Dubrovnik ), less frequently Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Dubrovnik and Metkovic.
Prevalence
About 10 people with faimily name Krulj live in Croatia today, in 6 households. There were 10 of them in the middle of the past century, and their number remains constant. They are located in only four naselja i to in Opuzen (<10), Sipanska Luka (<5), Zagreb (<5), and in Dubrovnik (<5).