In Croatia, Tandar families are predominantly Croats (from Koprivnica area ), rarely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Koprivnica area and in Koprivnica. In Vrhovac Sokolovački in Koprivnica area every sixth inhabitant had the family name Tandar.
Prevalence
About 10 people with faimily name Tandar live in Croatia today, in four households only. There were 20 of them in the middle of the past century, and their number halved. They are located in two Croatian counties, in one city and 5 other places, mostly in Vrhovac Sokolovacki (<10), Sokolovac (<5) and Jankovac (<5) in Koprivnica area, Zagreb (<5), and in Srijem in Koprivnica area (<5).