In Croatia, Jandraš families are generally Croats (from Dugo Selo ), rarely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Petrinja.
Prevalence
About 10 people with faimily name Jandraš live in Croatia today, in 7 households. There were 40 of them in the middle of the past century, and their number decreased significantly. They are located in only five naselja i to in Zagreb (<10), Dugo Selo (<5), Kriz Hrastovacki (<5), Petrinja (<5), and in Preseka Oborovska in Dugo Selo area (<5).
Outside Croatia
Family name Jandraš is present in three countries on three continents. The family name "Jandras " is used by small number of people in Morocco and small number 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.