Crnčić families are Croats and they are mostly from Novi Marof area. According to some sources they are from Senj and Sinja. In the past century, relatively most of Croatian residents bearing this family name were born in Krizevci and Varazdin. In Ruševac in Krizevci every sixth inhabitant had the family name Crnčić.
About 580 people with faimily name Crnčić live in Croatia today, in 230 households. There were 710 of them in the middle of the past century, and their number decreased by 20 percent. They are located in the most of Croatian counties, in 25 cities and 80 other places, mostly in Krizevci (60), Zagreb (60), Varazdin (45), Rijeka (35), and in Krk on the Island of Krk (20).