In Croatia, Smrk families are almost entirely Croats (from Prelog area ), barely Roms (from Bjelovar ), and . In the past century, relatively most of Croatian residents bearing this family name were born in Bjelovar and Zagreb. In Gornji Tomaš in Bjelovar every ninth inhabitant had the family name Smrk.
Prevalence
About 60 people with faimily name Smrk live in Croatia today, in 30 households. There were 50 of them in the middle of the past century, and their number increased by 10 percent. They are located in 7 Croatian counties and 6 other places, mostly in Zagreb (25), Kotoriba in Prelog area (15), Bjelovar (<10), Gornji Tomas (<10), and in Gorican in Cakovec area (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.