In Croatia, Graho families are almost entirely Croats (from Petrinja ), barely Bosniaks (from North Herzegovina ), and . In the past century, relatively most of Croatian residents bearing this family name were born in Karlovac and Petrinja.
Prevalence
About 60 people with faimily name Graho live in Croatia today, in 30 households. There were 90 of them in the middle of the past century, and their number decreased by 30 percent. They are located in 8 Croatian counties, in 8 cities and 8 other places, mostly in Karlovac (20), Slana (10), Petrinja (<10), Staro Pracno (<10), and in Sisak (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1917 in source List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia.