In Croatia, Šelem families are generally Croats (from Novska area ), very rarely Czechs (from Novska ), and . In the past century, relatively most of Croatian residents bearing this family name were born in Pozega and Novska.
Prevalence
About 20 people with faimily name Šelem live in Croatia today, in 8 households. There were 10 of them in the middle of the past century, and their number doubled. They are located in threee Croatian counties, two cities and four other places, mostly in Krivaj (<10) and Lipovljani (<5) in Novska area, Zagreb (<5), Sesvete (<5), and in Pozega (<5).
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.