Švast families are Croats and they are mostly from Novi Vinodolski area. In the past century, relatively most of Croatian residents bearing this family name were born in Rijeka and in Novi Vinodolski area.
Prevalence
About 100 people with faimily name Švast live in Croatia today, in 50 households. There were 80 of them in the middle of the past century, and their number increased by 30 percent. They are located in 7 Croatian counties, in 11 cities and 6 other places, mostly in Rijeka (25), Zagreb (20), Tribalj in Novi Vinodolski area (15), Suhopolje in Virovitica area (10), and in Crikvenica (10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 2007 in source Encyclopaedia of Croatian Surnames.