In Croatia, Peterka families are predominantly Croats (from Garesnica ), rarely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Garesnica and Pula.
Prevalence
About 20 people with faimily name Peterka live in Croatia today, in 10 households. There were 20 of them in the middle of the past century, and their number remains constant. They are located in four Croatian counties, four cities and two other places, mostly in Ciglenica (<10), Osijek (<10), Pula (<10), Slatina (<5), and in Garesnica (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.