In Croatia, Bućo families are Croats (from Middle Bosnia ). In the past century, relatively most of Croatian residents bearing this family name were born in Middle Bosnia (Fojnica area) and in East Herzegovina (Gacko area). In Bakovići in Middle Bosnia every fourth inhabitant had the family name Bućo.
Prevalence
About 40 people with faimily name Bućo live in Croatia today, in 18 households. There were 20 of them in the middle of the past century, and their number doubled. They are located in 9 Croatian counties, in 7 cities and 8 other places, mostly in Omis (<10), Sljivosevci in Donji Miholjac area (<10), Zagreb (<5), Kupari in Dubrovnik area (<5), and in Lacici in Donji Miholjac area (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1917 in source List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia.