In Croatia, Kataj families are Croats (from Djakovo ). In the past century, relatively most of Croatian residents bearing this family name were born in Djakovo and Vinkovci.
Prevalence
About 30 people with faimily name Kataj live in Croatia today, in 12 households. There were 10 of them in the middle of the past century, and their number tripled. They are only located in in 7 Croatian cities and threee other places, mostly in Djakovo (<10), Vinkovci (<10), Nustar in Vinkovci area (<10), Osijek (<5), and in Zupanja (<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.