Šašo families are mainly Croats and they are mostly from Glina , often Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Glina and in Hrvatska Kostajnica area. In places Bišćanovo and Gornji Selkovac in Glina every eighth inhabitant had the family name Šašo.
Prevalence
About 110 people with faimily name Šašo live in Croatia today, in 50 households. There were 90 of them in the middle of the past century, and their number increased by 20 percent. They are located in 9 Croatian counties, in 11 cities and 20 other places, mostly in Zagreb (20), Glina (10), Sisak (<10), Petrovec in Petrinja area (<10), and in Topolovac (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.