In Croatia, Lasta families are Croats (from Herzegovine ). In the past century, relatively most of Croatian residents bearing this family name were born in Herzegovina (Mostar area) and in Zagreb.
Prevalence
Only a few people with faimily name Lasta live in Croatia today, in five households only. There were 10 of them in the middle of the past century, and their number remains constant. They are located in four Croatian counties, two cities and four other places, mostly in Zagreb (<10), Strazanac in Daruvar area (<5), Metkovic (<5), Podaca in Ploce area (<5), and in Slano in Dubrovnik area (<5).