In Croatia, Janoušek families are Croats (from Koprivnica area ). In the past century, relatively most of Croatian residents bearing this family name were born in Nova Gradiska.
Prevalence
Only a few people with faimily name Janoušek 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 only four naselja i to in Mala Mucna in Koprivnica area (<5), Bjelovar (<5), Daruvar (<5), and in Cernik in Nova Gradiska area (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1917 in source List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia.