Tenžera families are Croats and they are mostly from Sinj. In the past century, relatively most of Croatian residents bearing this family name were born in Sinj and Osijek. In Obrovac Sinjski in Sinj every tenth inhabitant had the family name Tenžera.
Prevalence
About 250 people with faimily name Tenžera live in Croatia today, in 100 households. There were 100 of them in the middle of the past century, and their number more than doubled. They are located in the most of Croatian counties, in 16 cities and 13 other places, mostly in Obrovac Sinjski (60), Split (45), Zagreb (30), Solin (25), and in Osijek (20).
Outside Croatia
Family name Tenžera is present in this form only in Croatia.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1786 in source Catholic Church Parish Records.