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Surname Kostanjček in modern Croatia
In Croatia, Kostanjček families are Croats (from Hrvatska Kostajnica area ). In the past century, relatively most of Croatian residents bearing this family name were born in Hrvatska Kostajnica area and in Sisak.
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Prevalence
About 10 people with faimily name Kostanjček live in Croatia today, in four households only. There were 20 of them in the middle of the past century, and their number halved.
They are located in only four Croatian places: in Hrvatski Cuntic (<5), Sela (<5), Zagreb (<5), and in Bestrma in Hrvatska Kostajnica area (<5).
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Outside Croatia
Family name Kostanjček is present in this form only in Croatia.
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Characteristic first names
Joso Kostanjček,
Marijan Kostanjček,
Marija Kostanjček,
Ivan Kostanjček,
Josip Kostanjček,
Milan Kostanjček,
Blaženka Kostanjček,
Kata Kostanjček,
Ana Kostanjček,
Ivana Kostanjček,
Lidija Kostanjček,
Anka Kostanjček,
Antun Kostanjček,
Ignac Kostanjček