Proleta families are Croats and they are mostly from east Herzegovina. In the past century, relatively most of Croatian residents bearing this family name were born in Middle Bosnia (Kresevo area) and in East Herzegovina (Stolac area).
Prevalence
About 50 people with faimily name Proleta live in Croatia today, in 20 households. They are located in 7 Croatian counties, in 9 cities and 9 other places, mostly in Ploce (15), Privlaka (<10), Metkovic (<10), Opuzen (<10), and in Mokosica (<10).
Outside Croatia
Family name Proleta is present in two countries on two continents.
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.