In Croatia, Hainž families are Croats (from Ivanec area ). In the past century, relatively most of Croatian residents bearing this family name were born in Varazdin and in Ivanec area.
Prevalence
About 50 people with faimily name Hainž live in Croatia today, in 15 households. There were 20 of them in the middle of the past century, and their number more than doubled. They are only located in threee Croatian cities and four other places, mostly in Marusevec in Ivanec area (25), Varazdin (10), Ivanec (<5), Cerje Nebojse in Ivanec area (<5), and in Drenovec (<5).
Outside Croatia
Family name Hainž (including: Hainz , Chainz ) is present in 22 countries worldwide. The family name "Hainz " is used by some 1000 people in Germany , about 400 in Austria , and some 200 people in the United States. "Chainz " is used by small number of people in the United States.