Piškor families are Croats and they are mostly from Glina. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Glina.
Prevalence
About 390 people with faimily name Piškor live in Croatia today, in 160 households. There were 540 of them in the middle of the past century, and their number decreased by 30 percent. They are located in the most of Croatian counties, in 18 cities and 58 other places, mostly in Zagreb (120), Jakovlje in Zapresic area (25), Prekopa (20), Demerje (15), and in Sela (15).
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.