In Croatia, Pustijanac families are generally Croats (from Labin area ), very rarely Italians (also from Labin area ). In the past century, relatively most of Croatian residents bearing this family name were born in Labin area and in Pula. In Peresiji in Labin area every fifth inhabitant had the family name Pustijanac.
Prevalence
About 50 people with faimily name Pustijanac live in Croatia today, in 20 households. There were 70 of them in the middle of the past century, and their number decreased by 20 percent. They are located in two Croatian counties and 5 other places, mostly in Pula (20), in Svetvincenat (<10) and Jursici (<10) in Labin area, Zagreb (<10), and in Bokordici in Labin area (<10).
Outside Croatia
Family name Pustijanac 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.