In Croatia, Gredišnjak families are Croats (from Bjelovar area ). In the past century, relatively most of Croatian residents bearing this family name were born in Bjelovar area and in Bjelovar. In Botinac in Bjelovar area every eighth inhabitant had the family name Gredišnjak.
Prevalence
About 20 people with faimily name Gredišnjak live in Croatia today, in 8 households. There were 30 of them in the middle of the past century, and their number decreased by 30 percent. They are located in only five naselja i to in Velika Gorica (<10), Bjelovar (<10), and in Sredice Gornje (<5), Botinac (<5) and Kapela (<5) in Bjelovar area.
Outside Croatia
Family name Gredišnjak is present in this form only in Croatia.