In Croatia, Košćal families are generally Croats (from Cazma ), rarely Czechs (from Daruvar ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Middle Bosnia (Travnik area).
Prevalence
About 20 people with faimily name Košćal live in Croatia today, in 11 households. There were 30 of them in the middle of the past century, and their number decreased by 20 percent. They are located and two other Croatian places, mostly in Zagreb (<10), Popovaca in Kutina area (<10), Opcevac (<5), Sesvete (<5), and in Daruvar (<5).
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.