In Croatia, Gajec families are almost entirely Croats (from Klanjec area ), very rarely Serbs. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Osijek.
Prevalence
About 40 people with faimily name Gajec live in Croatia today, in 14 households. There were 40 of them in the middle of the past century, and their number remains constant. They are located in four Croatian counties and 5 other places, mostly in Zagreb (20), Ivanic-Grad (15), Cret Bizovacki in Valpovo area (<10), Tuhelj in Klanjec area (<5), and in Osijek (<5).
Outside Croatia
Family name Gajec is present in 6 countries on three continents.