There are
143
Koscaks in the USA
Koscak is the
120901st
most common last name in the USA

Koscak Genealogy

OriginsThe Koscak surname originates from Slovenia, a country located in Central Europe. It is primarily found among Slovenian families and communities.
Geographic DistributionThe Koscak surname is most popular in Slovenia, where it has a significant presence due to its Slovenian origins. It is less commonly found in other countries.
VariationsThere are no known variations of the Koscak surname.
Migration and ImmigrationDue to its limited presence and cultural specificity, there is limited information available regarding migration and immigration of the Koscak surname.