Grobenski families are Croats and they are mostly from Lepoglava area. In the past century, relatively most of Croatian residents bearing this family name were born in Koprivnica and in Lepoglava area. In Šaša in Lepoglava area every fifth inhabitant had the family name Grobenski.
Prevalence
About 180 people with faimily name Grobenski live in Croatia today, in 80 households. There were 160 of them in the middle of the past century, and their number increased by 10 percent. They are located in 10 Croatian counties, in 10 cities and 21 other places, mostly in Koprivnica (55), Zagreb (40), Jagnjedovec (10), and in Sasa (<10) and Sinkovica Bednjanska (<10) in Lepoglava area.
Outside Croatia
Family name Grobenski is present in three countries on two continents.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 2007 in source Encyclopaedia of Croatian Surnames.