In Croatia, Stemberger families are predominantly Croats (from Labin ), rarely Italians (from Pula ). In the past century, relatively most of Croatian residents bearing this family name were born in Pula and Rijeka.
Prevalence
About 30 people with faimily name Stemberger live in Croatia today, in 15 households. There were 60 of them in the middle of the past century, and their number halved. They are located in four Croatian counties and threee other places, mostly in Labin (<10), Rijeka (<10), Zagreb (<10), Pula (<5), and in Osijek (<5).
Outside Croatia
At least five families with this surname emigrated from Croatia to: the United States (2), Australia (1), Germany (1), and to Sweden (1). Family name Stemberger is present in 18 countries worldwide. The family name "Stemberger " is used by some 300 people in Austria , about 300 in the United States , and some 200 people in Germany.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1917 in source List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia.