Kerin families are Croats and they are mostly from Zagreb. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Karlovac.
Prevalence
About 80 people with faimily name Kerin live in Croatia today, in 30 households. There were 70 of them in the middle of the past century, and their number increased by 20 percent. They are located in 7 Croatian counties, in 12 cities and four other places, mostly in Zagreb (30), Perci (10), Tar (<10), Karlovac (<10), and in Velika Gorica (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1938 in source Phone Book - Zagreb 1938.