Piljak families are Croats and they are mostly from Ludbreg area. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Ludbreg area. In Ivančevo in Middle Bosnia every ninth inhabitant had the family name Piljak.
Prevalence
About 120 people with faimily name Piljak live in Croatia today, in 50 households. There were 100 of them in the middle of the past century, and their number increased by 20 percent. They are located in the most of Croatian counties, in 12 cities and 13 other places, mostly in Zlatar (20), Jalzabet in Ludbreg area (15), Zagreb (15), Jarmina in Vinkovci area (<10), and in Novakovec in Ludbreg area (<10).
