In Croatia, Biuklija families are Croats (from Valpovo ). In the past century, relatively most of Croatian residents bearing this family name were born in Valpovo and Osijek.
Prevalence
About 20 people with faimily name Biuklija live in Croatia today, in 9 households. There were 0 of them in the middle of the past century, and their number multiplied. They are located in only four naselja i to in Valpovo (25), Beli Manastir (<5), Belisce (<5), and in Secerana (<5).
Outside Croatia
Family name Biuklija is present in this form only in Croatia.