Boko families are Croats and they are mostly from Sinj area. In the past century, relatively most of Croatian residents bearing this family name were born in Split and in Sinj area.
Prevalence
About 240 people with faimily name Boko live in Croatia today, in 90 households. There were 150 of them in the middle of the past century, and their number increased by 60 percent. They are located in four Croatian counties, in 11 cities and 12 other places, mostly in Split (170), Solin (20), Sinj (20), and in Gornje Ogorje (15) and Donje Ogorje (<10) in Sinj area.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 2007 in source Encyclopaedia of Croatian Surnames.