In Croatia, Mudrinjak families are almost entirely Croats (from Garesnica ), barely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Garesnica and Zagreb.
Prevalence
About 50 people with faimily name Mudrinjak live in Croatia today, in 20 households. There were 30 of them in the middle of the past century, and their number increased by 70 percent. They are located in 6 Croatian counties, in 6 cities and 5 other places, mostly in Zagreb (15), Kaniska Iva (<10), Kutina (<10), Sisak (<10), and in Dugo Selo (<10).
Outside Croatia
Family name Mudrinjak is present in this form only in Croatia.