Štulec families are Croats and they are mostly from Samobor.The surname of Štulec earliest is found in the parish of Sveti Martin under Okić. In the past century, relatively most of Croatian residents bearing this family name were born in Samobor and Zagreb. In Drežnik Podokićki in Samobor every third inhabitant had the family name Štulec.
Prevalence
About 120 people with faimily name Štulec live in Croatia today, in 40 households. There were 90 of them in the middle of the past century, and their number increased by 40 percent. They are located in 7 Croatian counties, in 8 cities and 13 other places, mostly in Sveti Martin Pod Okicem (25), Zagreb (25), Pozega (10), Rezovac (10), and in Dreznik Podokicki (10).
Outside Croatia
Family name Štulec is present in four countries on three continents. The family name "Stulec " 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 1924 in source Emigration Commission Zagreb.