Sekušak families are Croats and they are mostly from Pregrada. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Pregrada. In Klenice in Pregrada every fifth inhabitant had the family name Sekušak.
Prevalence
About 90 people with faimily name Sekušak live in Croatia today, in 40 households. There were 50 of them in the middle of the past century, and their number increased by 90 percent. They are located in 6 Croatian counties, in 9 cities and 11 other places, mostly in Zagreb (45), Klenice (15), Hum na Sutli in Pregrada area (10), Koprivnica (<10), and in Pregrada (<10).
Outside Croatia
Family name Sekušak is present in this form only in Croatia.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 2007 in source Encyclopaedia of Croatian Surnames.