Teskera families are Croats and they are mostly from Knin area. In the past century, relatively most of Croatian residents bearing this family name were born in Knin area and in Slavonski Brod.
Prevalence
About 430 people with faimily name Teskera live in Croatia today, in 180 households. There were 290 of them in the middle of the past century, and their number increased by 50 percent. They are located in the most of Croatian counties, in 17 cities and 28 other places, mostly in Slavonski Brod (70), Zagreb (70), Virovitica (45), Kijevo in Knin area (40), and in Knin (30).
Outside Croatia
Family name Teskera is present in 10 countries on four continents. "Teschera " 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 2007 in source Encyclopaedia of Croatian Surnames.