Brcko families are Croats and they are mostly from Zapresic area. In the past century, relatively most of Croatian residents bearing this family name were born in Zapresic area and in Zagreb. In Čemernica Lonjska in Ivanic-Grad area every fifth inhabitant had the family name Brcko.
About 310 people with faimily name Brcko live in Croatia today, in 110 households. There were 290 of them in the middle of the past century, and their number increased by 10 percent. They are located in 8 Croatian counties, in 11 cities and 16 other places, mostly in Jakovlje in Zapresic area (125), Zagreb (90), in Klostar Ivanic (40) and Cemernica Lonjska (35) in Ivanic-Grad area, and in Ivanic-Grad (15).