Krulčić families are Croats and they are mostly from Buzet. In the past century, relatively most of Croatian residents bearing this family name were born in Buzet and in Slovenia. In Kompanj in Buzet every second inhabitant had the family name Krulčić.
Prevalence
About 100 people with faimily name Krulčić live in Croatia today, in 40 households. There were 100 of them in the middle of the past century, and their number remains constant. They are located in threee Croatian counties, in 9 cities and 11 other places, mostly in Rijeka (25), Kompanj (20), Buzet (<10), Pazin (<10), and in Roc (<10).
Outside Croatia
Family name Krulčić (including: Krulcic , Crulcich ) is present in 7 countries on four continents.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 2007 in source Encyclopaedia of Croatian Surnames.