In Croatia, Knol families are almost entirely Croats (from Djakovo area ), very rarely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Djakovo area and in Osijek.
Prevalence
About 30 people with faimily name Knol live in Croatia today, in 8 households. There were 40 of them in the middle of the past century, and their number decreased by 20 percent. They are located in threee Croatian counties, threee cities and 5 other places, mostly in Satnica Djakovacka in Djakovo area (10), Osijek (<10), Zagreb (<5), Gasinci in Djakovo area (<5), and in Sesvete (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.