Ćorluka families are Croats and they are mostly from Bosnian Posavina. According to some sources they are from Grude (Herzegovina). In the past century, relatively most of Croatian residents bearing this family name were born in Bosanian Posavina (Derventa area) and in Herzegovina (Grude area). In Grude in Herzegovina every tenth inhabitant had the family name Ćorluka.
Prevalence
About 800 people with faimily name Ćorluka live in Croatia today, in 320 households. There were 10 of them in the middle of the past century, and their number multiplied. They are located in the most of Croatian counties, in 36 cities and 58 other places, mostly in Zagreb (295), Sesvete (65), Slavonski Brod (65), Dugo Selo (35), and in Pozega (30).
Outside Croatia
Family name Ćorluka is present in 16 countries on four continents. The family name "Corluka " is used by some 100 people in Afghanistan , about 90 in Canada , and some 70 people in the United States.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 2007 in source Encyclopaedia of Croatian Surnames.