In Croatia, Pataj families are almost entirely Croats (from Buzet area ), very rarely Poles (from Porec ). In the past century, relatively most of Croatian residents bearing this family name were born in Pula and in Buzet area.
Prevalence
About 30 people with faimily name Pataj live in Croatia today, in 11 households. There were 40 of them in the middle of the past century, and their number decreased by 30 percent. They are located in threee Croatian counties, in 6 cities and another small place , mostly in Rijeka (<10), Cere in Pazin area (<10), Pula (<10), Rovinj (<10), and in Porec (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.