In Croatia, Tratiški families are Croats (from Pregrada ). In the past century, relatively most of Croatian residents bearing this family name were born in Krapina and Pregrada.
Prevalence
Only a few people with faimily name Tratiški live in Croatia today, in one household only. There were 0 of them in the middle of the past century, and their number remains constant. They are located in only one small Croatian place, in Martisa Ves (<5).
Outside Croatia
Family name Tratiški is present in this form only in Croatia.