Jambrec families are Croats and they are mostly from Novi Marof area. In the past century, relatively most of Croatian residents bearing this family name were born in Novi Marof area and in Zagreb.
Prevalence
About 100 people with faimily name Jambrec live in Croatia today, in 40 households. There were 80 of them in the middle of the past century, and their number increased by 20 percent. They are located in 9 Croatian counties, in 9 cities and 16 other places, mostly in Zagreb (20), Krizevci (10), Kostanjevec Rijecki in Novi Marof area (10), Selci Djakovacki (10), and in Slakovci in Vinkovci area (<10).
Outside Croatia
Family name Jambrec is present in 6 countries on two continents. "Jambretz " is used by some 60 people in the United States.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.