In Croatia, Trboglav families are Croats (from Doboj area, BiH ). In the past century, relatively most of Croatian residents bearing this family name were born in Western Bosnia (Livno area) and in Doboj, Bosnia (Doboj area).
Prevalence
About 10 people with faimily name Trboglav live in Croatia today, in 6 households. They are located in three Croatian cities only: in Osijek (<10), Split (<5), and in Sesvete (<5).
Outside Croatia
At least one family with this surname emigrated from Croatia to the United States. Family name Trboglav is present in three countries.