In Croatia, Mačar families are Serbs by relative majority (from Middle Bosnia ), rarely Italians (from Rijeka ), and . In the past century, relatively most of Croatian residents bearing this family name were born in Rijeka and Vrbovsko. In Baltići in Romania (Bosnia) nearly every inhabitant had the family name Mačar.
Prevalence
About 10 people with faimily name Mačar live in Croatia today, in 6 households. There were 0 of them in the middle of the past century, and their number multiplied. They are located in five Croatian cities only: in Zagreb (<10), Rijeka (<5), Osijek (<5), Velika Gorica (<5), and in Vrbovsko (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over forty times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.