In Croatia, Boris families are mainly Croats (from Mursko Sredisce area ), less frequently Slovaks (from Djakovo area ). In the past century, relatively most of Croatian residents bearing this family name were born in Djakovo and in Djakovo area.
Prevalence
About 30 people with faimily name Boris live in Croatia today, in 11 households. There were 20 of them in the middle of the past century, and their number increased by 70 percent. They are located in four Croatian counties, threee cities and 7 other places, mostly in Djakovo (10), Visnjevac (<10), Lapsina in Mursko Sredisce area (<10), and in Punitovci (<5) and Bracevci (<5) in Djakovo area.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1923 in source Emigration Commission Zagreb.