In Croatia, Vidra families are predominantly Croats (from Cakovec ), rarely Hungarians (from Osijek area ), and very rarely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Cakovec and Zagreb.
Prevalence
About 50 people with faimily name Vidra live in Croatia today, in 20 households. There were 50 of them in the middle of the past century, and their number remains constant. They are located in 8 Croatian counties, in 8 cities and 8 other places, mostly in Zagreb (<10), Lopatinec in Cakovec area (<10), Pula (<10), Karanac in Beli Manastir area (<5), and in Cakovec (<5).