In Croatia, Hašperger families are Croats (from Cazma area ). In the past century, relatively most of Croatian residents bearing this family name were born in Cazma area and in Zagreb.
Prevalence
About 20 people with faimily name Hašperger live in Croatia today, in 10 households. They are only located in four Croatian cities and two other places, mostly in Zagreb (<10), Drenovec (<5), Varazdinske Toplice (<5), Kostanjevac in Cazma area (<5), and in Osijek (<5).
Outside Croatia
Family name Hašperger is present in three countries on two continents. The family name "Hasperger " is used by few people in the United States.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.