In Croatia, Miroić families are generally Croats (from Novi Marof area ), very rarely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Novi Marof area and in Zagreb.
Prevalence
About 20 people with faimily name Miroić live in Croatia today, in 8 households. There were 10 of them in the middle of the past century, and their number doubled. They are located in only four Croatian places: in Domovec in Novi Marof area (<10), Konjscina in Zlatar area (<5), Zlarin (<5), and in Zagreb (<5).
Outside Croatia
Family name Miroić 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 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.