In Croatia, Polo families are Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb.
Prevalence
Only a few people with faimily name Polo 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 three Croatian cities only: in Zagreb (<5), Rovinj (<5), and in Bregana (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1917 in source List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia.