In Croatia, Matrka families are Croats (from Novska area ). In the past century, relatively most of Croatian residents bearing this family name were born in Kutina and in Novska area.
Prevalence
About 10 people with faimily name Matrka live in Croatia today, in four households only. There were 10 of them in the middle of the past century, and their number remains constant. They are located in only four Croatian places: in Banova Jaruga (<10), Kutina (<5), Lipovljani in Novska area (<5), and in Zabnica in Cazma area (<5).
Outside Croatia
Family name Matrka is present in 11 countries on four continents. The family name "Matrka " is used by some 100 people in Slovakia , about 60 in the United States , and small number of people in Czech Republic. "Materka " is used by some 1000 people in Poland , about 50 in the United States , and small number of people in Mexico.