In Croatia, Zerec families are Croats (from Sveti Ivan Zelina ). In the past century, relatively most of Croatian residents bearing this family name were born in Sveti Ivan Zelina and Zagreb. In Črečan in Sveti Ivan Zelina every sixth inhabitant had the family name Zerec.
Prevalence
About 60 people with faimily name Zerec live in Croatia today, in 20 households. There were 100 of them in the middle of the past century, and their number decreased by 40 percent. They are located in two Croatian counties, two cities and 8 other places, mostly in Crecan (15), Salovec (10), Zagreb (10), Sveti Ivan Zelina (<10), and in Pretoki (<10).
Outside Croatia
Family name Zerec is present in 8 countries worldwide. The family name "Zerec " is used by few people in the United States.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1917 in source List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia.