In Croatia, Svrdlin families are predominantly Serbs, rarely Croats (from the Island of Brac ). In the past century, relatively most of Croatian residents bearing this family name were born in Imotsko and in Imotski area.
Prevalence
About 30 people with faimily name Svrdlin live in Croatia today, in 15 households. There were 40 of them in the middle of the past century, and their number decreased by 20 percent. They are located in threee Croatian counties, four cities and two other places, mostly in Krivodol in Sinj area (<10), Zagreb (<10), Split (<5), Krivodol in Imotski area (<5), and in Zadar (<5).