Rumenčić families are Croats and they are mostly from Dugo Selo area. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Dugo Selo area.
Prevalence
About 30 people with faimily name Rumenčić live in Croatia today, in 17 households. There were 50 of them in the middle of the past century, and their number decreased by 30 percent. They are located in four Croatian counties, four cities and 5 other places, mostly in Oborovo in Dugo Selo area (<10), Dugo Selo (<10), Zagreb (<5), Velika Gorica (<5), and in Novaki Oborovski in Dugo Selo area (<5).
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.