In Croatia, Sejmenović families are mainly Bosniaks (from Semberia (also Bosnia) ), less frequently Croats (from Semberia (Bosnia) ). In the past century, relatively most of Croatian residents bearing this family name were born in Semberia, Bosnia (Bijeljina area).
Prevalence
About 10 people with faimily name Sejmenović live in Croatia today, in four households only. They are located in only five Croatian places: in Slavonski Brod (<5), Vrsno (<5), Sesvete (<5), Marinici in Rijeka area (<5), and in Dubrava kod Sibenika (<5).
Outside Croatia
Family name Sejmenović is present in four countries on two continents. The family name "Sejmenovic " is used by small number of people in the United States.