In Croatia, Šloser families are predominantly Croats (from Pozega area ), rarely Germans (from Slavonski Brod ). In the past century, relatively most of Croatian residents bearing this family name were born in Slavonski Brod and in Bosanian Posavina (Derventa area).
Prevalence
About 20 people with faimily name Šloser live in Croatia today, in 8 households. There were 20 of them in the middle of the past century, and their number remains constant. They are located in 6 Croatian counties and another small place , mostly in Zagreb (<10), Slavonski Brod (<10), Radovanci in Pozega area (<5), Osijek (<5), and in Zadar (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.