Ključe families are Croats and they are mostly from Opuzen area. In the past century, relatively most of Croatian residents bearing this family name were born in Metkovic and in Opuzen area.
Prevalence
About 60 people with faimily name Ključe live in Croatia today, in 20 households. There were 70 of them in the middle of the past century, and their number decreased by 20 percent. They are located in threee Croatian counties and threee other places, mostly in Opuzen (25), in Podgradina (15) and Vlaka (<10) in Opuzen area, Dubrovnik (<10), and in Zagreb (<10).
Outside Croatia
Family name Ključe is present in 6 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.