In Croatia, Detković families are Croats (from Petrinja area ). In the past century, relatively most of Croatian residents bearing this family name were born in Sisak and Zagreb.
Prevalence
About 30 people with faimily name Detković live in Croatia today, in 7 households. There were 50 of them in the middle of the past century, and their number decreased by 40 percent. They are located in only five Croatian places: in Letovanic in Petrinja area (15), Gusce (<10), Odra Sisacka (<10), Sisak (<5), and in Zazina in Petrinja area (<5).
Outside Croatia
Family name Detković (including: Detkovic , Detkovich ) is present in 8 countries on two continents.