In Croatia, Ćosić-Dragan families are Croats (from Sinj area ). In the past century, relatively most of Croatian residents bearing this family name were born in Sinj area and in Split.
Prevalence
About 30 people with faimily name Ćosić-Dragan live in Croatia today, in 13 households. They are located in four Croatian counties, in 7 cities, mostly in Grab in Sinj area (<10), Zagreb (<10), Kastel Luksic (<10), Osijek (<5), and in Solin (<5).
Outside Croatia
Family name Ćosić-Dragan is present in this form only in Croatia.