In Croatia, Peterčić families are generally Croats (from Petrinja area ), rarely Slovenes (from Slovenia ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Slovenia.
Prevalence
About 20 people with faimily name Peterčić live in Croatia today, in 9 households. There were 10 of them in the middle of the past century, and their number doubled. They are located in threee Croatian counties, four cities and two other places, mostly in Zagreb (<10), Lekenik in Petrinja area (<5), Scitarjevo (<5), Sesvete (<5), and in Sisak (<5).
Outside Croatia
Family name Peterčić is present in three countries on three continents. The family name "Petercic " is used by small number of people in the United States and small number in Argentina.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1917 in source List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia.