Jandrok families are Croats and they are mostly from Nasice area. In the past century, relatively most of Croatian residents bearing this family name were born in Nasice area and in Osijek.
Prevalence
About 50 people with faimily name Jandrok live in Croatia today, in 20 households. There were 40 of them in the middle of the past century, and their number increased by 30 percent. They are located in 7 Croatian counties, in 7 cities and 7 other places, mostly in Osijek (20), Zabok (<10), Valpovo (<10), and in Martijanec (<5) and Rivalno (<5) in Ludbreg area.
Outside Croatia
Family name Jandrok is present in five countries on two continents. The family name "Jandrok " is used by small number of people in France and small number in the United States. "Jandrock " is used by few people in the United States.
