Jambrišak families are Croats and they are mostly from Dugo Selo area. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Novska.
Prevalence
About 150 people with faimily name Jambrišak live in Croatia today, in 60 households. There were 200 of them in the middle of the past century, and their number decreased by 30 percent. They are located in 9 Croatian counties, in 12 cities and 13 other places, mostly in Zagreb (55), Stara Subocka (20), Vrbovec (15), Novska (10), and in Sesvete (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.