Zrinjan families are Croats and they are mostly from Zapresic. In the past century, relatively most of Croatian residents bearing this family name were born in Samobor and Zapresic. In Medsave in Samobor every tenth inhabitant had the family name Zrinjan.
Prevalence
About 70 people with faimily name Zrinjan live in Croatia today, in 30 households. There were 70 of them in the middle of the past century, and their number remains constant. They are located in threee Croatian counties, four cities and threee other places, mostly in Zapresic (35), Medsave (35), Zagreb (<10), Samobor (<5), and in Vodice (<5).
Outside Croatia
Family name Zrinjan is present in this form only in Croatia.
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.