In Croatia, Kek families are predominantly Croats (from Pleternica area ), rarely Czechs (from Daruvar ), and very rarely Hungarians. In the past century, relatively most of Croatian residents bearing this family name were born in Bjelovar and Daruvar.
Prevalence
About 20 people with faimily name Kek live in Croatia today, in 9 households. There were 40 of them in the middle of the past century, and their number halved. They are located in only five naselja i to in Zagreb (<10), Daruvar (<10), Stare Plavnice (<5), Opatija (<5), and in Rovisce in Bjelovar area (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 2007 in source Encyclopaedia of Croatian Surnames.