In Croatia, Tešulov families are Croats (from Sibenik ). In the past century, relatively most of Croatian residents bearing this family name were born in Sibenik and Trogir.
Prevalence
About 10 people with faimily name Tešulov live in Croatia today, in 6 households. There were 10 of them in the middle of the past century, and their number remains constant. They are located in only four naselja i to in Zlarin (<10), Sibenik (<5), Rogoznica in Trogir area (<5), and in Zagreb (<5).
Outside Croatia
Family name Tešulov is present in two countries on two continents. The family name "Tesulov " is used by small number of people in the United States.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1929 in source Emigration Commission Zagreb.