Dretvić families are Croats and they are mostly from Zupanja area. In the past century, relatively most of Croatian residents bearing this family name were born in Zupanja area and in Vinkovci.
Prevalence
About 200 people with faimily name Dretvić live in Croatia today, in 90 households. There were 220 of them in the middle of the past century, and their number decreased by 10 percent. They are located in 9 Croatian counties, in 12 cities and 12 other places, mostly in Gradiste (120) and Cerna (15) in Zupanja area, Zagreb (10), Zupanja (10), and in Ivankovo in Vinkovci area (10).
Outside Croatia
Family name Dretvić is present in four countries on two continents.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 2007 in source Encyclopaedia of Croatian Surnames.