In Croatia, Kotas families are predominantly Croats (from Orahovica area ), rarely Czechs (also from Orahovica area ). In the past century, relatively most of Croatian residents bearing this family name were born in Orahovica area and in Pozega.
Prevalence
Only a few people with faimily name Kotas 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 one small Croatian place, in Bjelisevac in Orahovica area (<10).