Poletto families are often Croats and they are mostly from Nova Gradiska area , less frequently Italians (from Kutina area ). In the past century, relatively most of Croatian residents bearing this family name were born in Nova Gradiska and Pakrac. In Ciglenica in Kutina area every eighth inhabitant had the family name Poletto.
Prevalence
About 90 people with faimily name Poletto live in Croatia today, in 40 households. There were 80 of them in the middle of the past century, and their number increased by 10 percent. They are located in 7 Croatian counties, in 10 cities and 8 other places, mostly in Resetari in Nova Gradiska area (15), Zagreb (10), Nova Gradiska (<10), Cernik in Nova Gradiska area (<10), and in Ciglenica in Kutina area (<10).
Outside Croatia
Family name Poletto is present in 34 countries worldwide. "Polletto " is used by small number of people in the United States.
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.