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Surname Iliač in modern Croatia
In the past century, relatively most of Croatian residents bearing this family name were born in Sveti Ivan Zelina.

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Prevalence
Only a few people with faimily name Iliač live in Croatia today, in households.
They are located in only one small Croatian place, in Laktec (<5).
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Outside Croatia
Family name Iliač (including: Eliack , Eliach , Iliac , Iliach and Eliac ) is present in 11 countries worldwide. "Eliach " is used by some 100 people in Bangladesh , about 50 in Argentina , and small number of people in the United States.
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Characteristic first names
Vjekoslav Iliač,
Adam Iliač,
Mikula Iliač