Didak families are Croats and they are mostly from middle Bosnia. In the past century, relatively most of Croatian residents bearing this family name were born in Middle Bosnia (Travnik area) and in Split. In places Miškića Brdo and Kraljevice in Middle Bosnia every fourth inhabitant had the family name Didak.
Prevalence
About 150 people with faimily name Didak live in Croatia today, in 60 households. There were 50 of them in the middle of the past century, and their number tripled. They are located in the most of Croatian counties, in 15 cities and 13 other places, mostly in Zagreb (40), Koprivno in Solin area (25), Split (20), Knin (10), and in Okrug Gornji on the Island of Ciovo (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.