In Croatia, Trajanović families are Croats (from Split ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb.
Prevalence
Only a few people with faimily name Trajanović live in Croatia today, in three households only. There were 0 of them in the middle of the past century, and their number remains constant. They are located in two Croatian counties, two cities and another small place , mostly in Zagreb (<5), Split (<5), and in Okrug Gornji on the Island of Ciovo (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1925 in source Emigration Commission Zagreb.