Šuman families are Croats and they are mostly from Ploce. In the past century, relatively most of Croatian residents bearing this family name were born in Metkovic and Ploce.
Prevalence
About 180 people with faimily name Šuman live in Croatia today, in 80 households. There were 100 of them in the middle of the past century, and their number increased by 80 percent. They are located in the most of Croatian counties, in 23 cities and 12 other places, mostly in Komin (90), Zagreb (30), Metkovic (<10), Ploce (<10), and in Velika Gorica (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 2007 in source Encyclopaedia of Croatian Surnames.