In Croatia, Sekulo families are Croats (from the Island of Mljet ). In the past century, relatively most of Croatian residents bearing this family name were born in Dubrovnik and on the Island of Mljet. In Maranovići on the Island of Mljet every sixth inhabitant had the family name Sekulo.
Prevalence
About 40 people with faimily name Sekulo live in Croatia today, in 19 households. There were 50 of them in the middle of the past century, and their number decreased by 20 percent. They are located in two Croatian counties, threee cities and 9 other places, mostly in Dubrovnik (<10), Maranovici on the Island of Mljet (<10), Slano in Dubrovnik area (<10), Okuklje on the Island of Mljet (<10), and in Mokosica (<5).