In Croatia, Černecki families are generally Croats (from Slavonski Brod area ), very rarely Bosniaks. In the past century, relatively most of Croatian residents bearing this family name were born in Slavonski Brod and in Slavonski Brod area. In Poljanci in Slavonski Brod area every fourtieth inhabitant had the family name Černecki.
Prevalence
About 30 people with faimily name Černecki live in Croatia today, in 8 households. They are located in only four Croatian places: in Poljanci in Slavonski Brod area (15), Radovanje in Pleternica area (<10), Zadar (<5), and in Slavonski Brod (<5).