Švađumović families are Croats and they are mostly from Nova Gradiska area. In the past century, relatively most of Croatian residents bearing this family name were born in Nova Gradiska area and in Nova Gradiska.
Prevalence
About 80 people with faimily name Švađumović live in Croatia today, in 20 households. They are located in 6 Croatian counties and 5 other places, mostly in Davor in Nova Gradiska area (70), Zagreb (10), Sesvete (<5), Varazdin (<5), and in Slavonski Brod (<5).
Outside Croatia
Family name Švađumović is present in this form only in Croatia.
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.