Keserović families are predominantly Croats and they are mostly from Banja Luka area (Bosnia), less frequently Bosniaks (from Cazinska Krajina Region, Bosnia). In the past century, relatively most of Croatian residents bearing this family name were born in Banja Luka Region, Bosnia (Banja Luka area) and in Cazins Region, Bosnia (Velika Kladusa area). In Trnovi in Cazins Region (Bosnia) every tenth inhabitant had the family name Keserović.
Prevalence
About 180 people with faimily name Keserović live in Croatia today, in 90 households. There were 10 of them in the middle of the past century, and their number multiplied. They are located in the most of Croatian counties, in 28 cities and 32 other places, mostly in Zagreb (30), Rijeka (30), Sisak (<10), Velika Gorica (<10), and in Petrinjci in Hrvatska Kostajnica area (<10).
Outside Croatia
At least two families with this surname emigrated from Croatia to Germany (1) and the United States (1). Family name Keserović is present in 16 countries worldwide. The family name "Keserovic " is used by some 100 people in the United States , small number in Sweden , and small number of people in Kazakhstan.
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.