Sičenica families are Croats and they are mostly from Imotski area. In the past century, relatively most of Croatian residents bearing this family name were born in Imotski area and in Imotsko.
Prevalence
About 150 people with faimily name Sičenica live in Croatia today, in 50 households. There were 70 of them in the middle of the past century, and their number doubled. They are only located in in 6 Croatian cities and 7 other places, mostly in Stobrec (35), Split (30), Imotski (20), Osijek (10), and in Zagreb (<10).
Outside Croatia
Family name Sičenica is present in this form only in Croatia.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 2007 in source Encyclopaedia of Croatian Surnames.