In Croatia, Mrčić families are generally Croats (from Peljesac Peninsula ), very rarely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Split and in Herzegovina (Capljina area).
Prevalence
About 20 people with faimily name Mrčić live in Croatia today, in 7 households. There were 20 of them in the middle of the past century, and their number remains constant. They are located in only four naselja i to in Split (<10), Zagreb (<10), Kuciste on the Peljesac peninsula (<5), and in Rijeka (<5).
Outside Croatia
Family name Mrčić (including: Mrcic , Merchich , Mercic and Mrchich ) is present in 12 countries on three continents.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.