In Croatia, Rajan families are Croats (from Otocac ). In the past century, relatively most of Croatian residents bearing this family name were born in Otocac and Petrinja. In Križ Hrastovački in Petrinja every twentieth inhabitant had the family name Rajan.
Prevalence
About 40 people with faimily name Rajan live in Croatia today, in 16 households. There were 50 of them in the middle of the past century, and their number decreased by 20 percent. They are located in threee Croatian counties, threee cities and four other places, mostly in Sinac (15), Zagreb (10), Petrinja (<10), Covici (<5), and in Kriz Hrastovacki (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1925 in source Emigration Commission Zagreb.