About 20 people with faimily name Simin live in Croatia today, in households. There were 10 of them in the middle of the past century, and their number doubled. They are located in only one small Croatian place, in Bijelo Brdo in Vinkovci area (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1927 in source Emigration Commission Zagreb.