In Croatia, Jaroš families are generally Croats (from Pozega area ), very rarely Czechs (from Pakrac ). In the past century, relatively most of Croatian residents bearing this family name were born in Pozega and Osijek.
Prevalence
About 70 people with faimily name Jaroš live in Croatia today, in 30 households. There were 50 of them in the middle of the past century, and their number increased by 40 percent. They are located in 7 Croatian counties, in 10 cities and 7 other places, mostly in Velika Gorica (10), Pozega (10), Prvca (<10), Radnovac in Pozega area (<10), and in Varazdin (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.