Šulj families are Croats and they are mostly from Prelog area. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Prelog area.
Prevalence
About 120 people with faimily name Šulj live in Croatia today, in 50 households. There were 110 of them in the middle of the past century, and their number increased by 10 percent. They are located in 6 Croatian counties, in 7 cities and 7 other places, mostly in Zagreb (65), Sveta Marija in Prelog area (25), Koprivnica (15), Koprivnicki Ivanec in Koprivnica area (10), and in Sesvete (<10).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1929 in source Emigration Commission Zagreb.