Rajačić families can be both Serbs and Croats (also from Senj area ). In the past century, relatively most of Croatian residents bearing this family name were born in Senj area and in Zagreb.
Prevalence
About 220 people with faimily name Rajačić live in Croatia today, in 110 households. There were 400 of them in the middle of the past century, and their number decreased by 50 percent. They are located in the most of Croatian counties, in 18 cities and 21 other places, mostly in Zagreb (65), Prokike in Senj area (30), Rijeka (20), Pula (10), and in Brinje in Senj area (10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1917 in source List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia.