In Croatia, Zečković families are Croats (from Nova Gradiska area ). In the past century, relatively most of Croatian residents bearing this family name were born in Nova Gradiska and Rijeka.
Prevalence
Only a few people with faimily name Zečković 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 Staro Petrovo Selo in Nova Gradiska area (<10), Rijeka (<5), Starci in Nova Gradiska area (<5), and in Cres on the Island of Cres (<5).
Outside Croatia
Family name Zečković (including: Zeckovic , Zeckovich ) is present in four countries on three continents. "Zeckovich " 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 over ten times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.