Pilski families are Croats and they are mostly from Oroslavje area. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Oroslavje area. In Pila in Oroslavje area every seventh inhabitant had the family name Pilski.
Prevalence
About 80 people with faimily name Pilski live in Croatia today, in 30 households. There were 100 of them in the middle of the past century, and their number decreased by 20 percent. They are located in 6 Croatian counties, in 8 cities and 8 other places, mostly in Pila in Oroslavje area (20), Zagreb (20), Sesvete (15), Strmec Stubicki in Oroslavje area (<10), and in Grdenci (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.