In Croatia, Mrzić families are generally Serbs, rarely Croats (from Labin area ). In the past century, relatively most of Croatian residents bearing this family name were born in Pakrac and in Banja Luka Region, Bosnia (Banja Luka area).
Prevalence
About 20 people with faimily name Mrzić live in Croatia today, in 13 households. There were 50 of them in the middle of the past century, and their number decreased significantly. They are located in 7 Croatian counties, four cities and 6 other places, mostly in Zagreb (<10), Laslovo in Osijek area (<10), Starcevljani in Bjelovar area (<5), Marinici in Rijeka area (<5), and in Bjelovar (<5).
Outside Croatia
Family name Mrzić (including: Mrzic , Merzic ) is present in 11 countries worldwide. "Merzic " is used by few people in the United States.