In Croatia, Krupljanin families are mainly Croats (from Pregrada area ), less frequently Serbs, and very rarely Macedonians (from Pregrada area ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Middle Bosnia (Zenica area). In Mehovci in Bosnian Krajina every eighth inhabitant had the family name Krupljanin.
Prevalence
About 30 people with faimily name Krupljanin live in Croatia today, in 12 households. There were 30 of them in the middle of the past century, and their number remains constant. They are located in 8 Croatian counties, in 7 cities and 5 other places, mostly in Dugo Selo (<10), Rijeka (<10), Desinic in Pregrada area (<5), Zupanja (<5), and in Blinjski Kut (<5).
Outside Croatia
At least three families with this surname emigrated from Croatia to the United States (2) and Australia (1). Family name Krupljanin is present in five countries on two continents. The family name "Krupljanin " is used by few people in the United States.
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.
