Cestar families are Croats and they are mostly from Ivanec area. In the past century, relatively most of Croatian residents bearing this family name were born in Varazdin and in Ivanec area.
Prevalence
About 250 people with faimily name Cestar live in Croatia today, in 110 households. There were 250 of them in the middle of the past century, and their number remains constant. They are located in 9 Croatian counties, in 14 cities and 34 other places, mostly in Djurdjevac (35), Zagreb (35), Varazdin (30), Osijek (15), and in Vinica in Ivanec area (15).
Outside Croatia
Family name Cestar (including: Zestar , Chestar ) is present in 16 countries worldwide. "Zestar " 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 1917 in source List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia.