Jeleč families are Croats and they are mostly from Bosnian Posavina. In the past century, relatively most of Croatian residents bearing this family name were born in Bosanian Posavina (Derventa area) and in Doboj, Bosnia (Doboj area). In Zelenike in Bosanian Posavina every fifth inhabitant had the family name Jeleč.
Prevalence
About 440 people with faimily name Jeleč live in Croatia today, in 150 households. There were 0 of them in the middle of the past century, and their number multiplied. They are located in the most of Croatian counties, in 25 cities and 43 other places, mostly in Zagreb (160), Slavonski Brod (30), Sesvete (25), Osijek (20), and in Zapresic (15).
Outside Croatia
Family name Jeleč (including: Jelec , Yeleck and Yelec ) is present in 13 countries on three continents. "Yeleck " 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 1942 in source Phone Directory of the Independent State of Croatia 1942.