In the past century, relatively most of Croatian residents bearing this family name were born in Bosanian Posavina (Banovici area) and in Middle Bosnia (Sarajevo area).
Prevalence
Only a few people with faimily name Koval live in Croatia today, in one household only. There were 0 of them in the middle of the past century, and their number multiplied. They are located in only two naselja i to in Stobrec (<5) and Split (<5).