In Croatia, Knihal families are Croats (from Zapresic ).
Prevalence
About 10 people with faimily name Knihal live in Croatia today, in one household only. They are located in only one small Croatian place, in Ivanec Bistranski (<5).
Outside Croatia
Family name Knihal (including: Knichal , Kníchal ) is present in 6 countries on two continents. The family name "Knihal " is used by small number of people in the United States.