In Croatia, Delać families are Croats (from Middle Bosnia ). In the past century, relatively most of Croatian residents bearing this family name were born in Middle Bosnia (Bugojno area) and in Western Bosnia (Tomislavgrad area). In Vrpeć in Middle Bosnia every seventh inhabitant had the family name Delać.
Prevalence
About 50 people with faimily name Delać live in Croatia today, in 18 households. There were 30 of them in the middle of the past century, and their number increased by 70 percent. They are located in the most of Croatian counties, in 11 cities and 6 other places, mostly in Zagreb (20), Knin (20), Veliko Svinjicko (<5), Trogir (<5), and in Vodice (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over twenty times, the first time 1736 in source Catholic Church Parish Records.