Merkaš families are Croats and they are mostly from Zabok area. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Krapina. In places Komor Začretski and Brezova in Zabok area every fifth inhabitant had the family name Merkaš.
Prevalence
About 660 people with faimily name Merkaš live in Croatia today, in 260 households. There were 560 of them in the middle of the past century, and their number increased by 20 percent. They are located in the most of Croatian counties, in 29 cities and 65 other places, mostly in Zagreb (205), Lepajci (55), in Komor Zacretski (35) and Sekirisce (30) in Zabok area, and in Donja Semnica (25).
Outside Croatia
Family name Merkaš (including: Merkas , Mercas ) is present in 10 countries on two continents.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.