Ostrički families are Croats and they are mostly from Lepoglava area. In the past century, relatively most of Croatian residents bearing this family name were born in Lepoglava area and in Zagreb. In Purga Bednjanska in Lepoglava area every sixth inhabitant had the family name Ostrički.
Prevalence
About 90 people with faimily name Ostrički live in Croatia today, in 40 households. There were 80 of them in the middle of the past century, and their number increased by 20 percent. They are located in 6 Croatian counties, in 8 cities and 7 other places, mostly in Zagreb (25), Staglinec (15), Varazdin (10), Sesvete (<10), and in Djurdjenovac in Nasice area (<10).
Outside Croatia
Family name Ostrički is present in two countries on two continents. The family name "Ostricki " is used by some 90 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.