In Croatia, Kefeček families are Croats (from Ivanic-Grad ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Garesnica.
Prevalence
About 50 people with faimily name Kefeček live in Croatia today, in 17 households. There were 70 of them in the middle of the past century, and their number decreased by 30 percent. They are located in 7 Croatian counties, in 6 cities and 5 other places, mostly in Zagreb (15), Luzan (15), Lekenik in Petrinja area (<10), Caginec (<10), and in Sesvete (<5).
Outside Croatia
Family name Kefeček is present in two countries on two continents.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.