In Croatia, Šeško families are Croats by relative majority (from Pula ), equally Slovenes (from Slovenia ). In the past century, relatively most of Croatian residents bearing this family name were born in Slovenia.
Prevalence
Only a few people with faimily name Šeško live in Croatia today, in one household only. There were 10 of them in the middle of the past century, and their number decreased significantly. They are located in one Croatian city only, in Pula (<5).
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.