Poštek families are Croats and they are mostly from Donja Stubica area. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Donja Stubica area. In Dobri Zdenci in Donja Stubica area every fifth inhabitant had the family name Poštek.
Prevalence
About 100 people with faimily name Poštek live in Croatia today, in 40 households. There were 80 of them in the middle of the past century, and their number increased by 20 percent. They are located in four Croatian counties, in 7 cities and 7 other places, mostly in Zagreb (35), in Dobri Zdenci (20) and Gornja Stubica (<10) in Donja Stubica area, Martinisce (<10), and in Donja Stubica (<10).
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.