Peštaj families are Croats and they are mostly from Donja Stubica. In the past century, relatively most of Croatian residents bearing this family name were born in Donja Stubica and Zagreb. In Matenci in Donja Stubica every ninth inhabitant had the family name Peštaj.
Prevalence
About 100 people with faimily name Peštaj live in Croatia today, in 40 households. There were 110 of them in the middle of the past century, and their number decreased by 0 percent. They are located in 8 Croatian counties, in 7 cities and 7 other places, mostly in Matenci (25), Voloder in Kutina area (20), Hrusevec (10), Zagreb (10), and in Oroslavje (10).
Outside Croatia
Family name Peštaj is present in three countries on two continents.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 2007 in source Encyclopaedia of Croatian Surnames.