In Croatia, Šerek families are Croats (from Krapina area ). In the past century, relatively most of Croatian residents bearing this family name were born in Krapina area and in Zabok.
Prevalence
About 30 people with faimily name Šerek live in Croatia today, in 11 households. There were 80 of them in the middle of the past century, and their number decreased significantly. They are only located in in 6 Croatian cities and 5 other places, mostly in Stuparje in Krapina area (10), Belisce (<10), Rijeka (<10), Racisce on the Island of Korcula (<10), and in Svedruza in Krapina area (<10).