Tremski families are Croats and they are mostly from Krizevci area. In the past century, relatively most of Croatian residents bearing this family name were born in Krizevci area and in Bjelovar. In Sveti Petar Orehovec in Krizevci area every ninth inhabitant had the family name Tremski.
Prevalence
About 130 people with faimily name Tremski live in Croatia today, in 40 households. There were 120 of them in the middle of the past century, and their number increased by 10 percent. They are located in 10 Croatian counties, in 11 cities and 14 other places, mostly in Krizevci (20), in Vinarec (20) and Sveti Petar Orehovec (15) in Krizevci area, Koprivnica (10), and in Bjelovar (<10).
Outside Croatia
Family name Tremski is present in 7 countries on two continents. "Tremsky " 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 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.