In Croatia, Sloser families are Croats (from Novigrad area ). In the past century, relatively most of Croatian residents bearing this family name were born in Umag and in Novigrad area.
Prevalence
Only a few people with faimily name Sloser live in Croatia today, in two households only. There were 0 of them in the middle of the past century, and their number remains constant. They are located in only two Croatian places: in Labinci in Novigrad area (<5) and Novigrad (<5).