In Croatia, Tomašinec families are Croats (from Sveti Ivan Zelina area ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Samobor. In Tišina Kaptolska in Sisak area every ninth inhabitant had the family name Tomašinec.
Prevalence
About 60 people with faimily name Tomašinec live in Croatia today, in 20 households. There were 80 of them in the middle of the past century, and their number decreased by 10 percent. They are only located in in 6 Croatian cities and 6 other places, mostly in Zagreb (30), Ravnes in Bjelovar area (<10), Rakovec in Sveti Ivan Zelina area (<10), Tisina Erdedska in Sisak area (<10), and in Zadar (<5).
Outside Croatia
Family name Tomašinec 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 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.