Marčec families are Croats and they are mostly from Ivanec area. In the past century, relatively most of Croatian residents bearing this family name were born in Cakovec and Varazdin. In Korenjak in Ivanec area every fourth inhabitant had the family name Marčec.
About 670 people with faimily name Marčec live in Croatia today, in 280 households. There were 670 of them in the middle of the past century, and their number remains constant. They are located in the most of Croatian counties, in 21 cities and 82 other places, mostly in Nedelisce in Cakovec area (80), Varazdin (70), Cakovec (60), Zagreb (45), and in Mala Subotica in Cakovec area (25).