Poštić families can be both Serbs and Croats (from Valpovo area ). In the past century, relatively most of Croatian residents bearing this family name were born in Glina area and in Osijek.
Prevalence
About 180 people with faimily name Poštić live in Croatia today, in 90 households. There were 270 of them in the middle of the past century, and their number decreased by 40 percent. They are located in the most of Croatian counties, in 18 cities and 23 other places, mostly in Vukovar (25), Zagreb (20), Petrijevci in Valpovo area (20), Osijek (15), and in Karlovac (15).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.