In Croatia, Penić-Grgaš families are Croats (from Jastrebarsko area ). In the past century, relatively most of Croatian residents bearing this family name were born in Jastrebarsko area and in Zagreb.
Prevalence
About 10 people with faimily name Penić-Grgaš live in Croatia today, in 6 households. There were 60 of them in the middle of the past century, and their number decreased significantly. They are located in only four naselja i to in Krasic in Jastrebarsko area (<10), Zagreb (<5), Skrbcici on the Island of Krk (<5), and in Recica (<5).
Outside Croatia
Family name Penić-Grgaš is present in this form only in Croatia.