Krog families are Croats and they are mostly from Krapina area. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Varazdin.
Prevalence
About 360 people with faimily name Krog live in Croatia today, in 140 households. There were 350 of them in the middle of the past century, and their number remains constant. They are located in the most of Croatian counties, in 21 cities and 43 other places, mostly in Zagreb (95), Punikve (25), Staznjevec (20), Krapina (20), and in Bregi Kostelski (20).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1917 in source List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia.