In Croatia, Ross families are Croats (from Petrinja ). In the past century, relatively most of Croatian residents bearing this family name were born in Petrinja and Sisak.
Prevalence
About 30 people with faimily name Ross live in Croatia today, in 11 households. There were 20 of them in the middle of the past century, and their number increased by 80 percent. They are located in four Croatian counties and another small place , mostly in Petrinja (15), Donji Vukojevac in Petrinja area (<5), Zagreb (<5), Split (<5), and in Rijeka (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.