In Croatia, Galko families are Croats (from Lipik ). In the past century, relatively most of Croatian residents bearing this family name were born in Novska and Pakrac.
Prevalence
About 20 people with faimily name Galko live in Croatia today, in 9 households. There were 20 of them in the middle of the past century, and their number remains constant. They are located in three Croatian cities only: in Lipik (15), Novska (<10), and in Kutina (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over forty times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.