Uđbinac families are Croats and they are mostly from Grubisno Polje area. In the past century, relatively most of Croatian residents bearing this family name were born in Grubisno Polje area and in Zagreb.
Prevalence
About 80 people with faimily name Uđbinac live in Croatia today, in 40 households. There were 200 of them in the middle of the past century, and their number decreased significantly. They are located in 7 Croatian counties, in 9 cities and 13 other places, mostly in Sisljavic (15), Domankus in Bjelovar area (<10), Zagreb (<10), Hrusevec Kupljenski (<10), and in Grubisno Polje (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.