In Croatia, Oparić families are Croats (from Kutina ). In the past century, relatively most of Croatian residents bearing this family name were born in Kutina and Zagreb.
Prevalence
About 10 people with faimily name Oparić live in Croatia today, in four households only. There were 20 of them in the middle of the past century, and their number halved. They are located in only four naselja i to in Kutina (<10), Sartovac (<5), Varazdin (<5), and in Mali Losinj on the Island of Losinj (<5).
Outside Croatia
Family name Oparić (including: Oparic , Oparichev and Oparich ) is present in four countries.
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.