There are
367
Onderkos in the USA
Onderko is the
55841st
most common last name in the USA

Onderko Genealogy

OriginsThe ONDERKO surname is predominantly Polish in origin, but it may also be found in other countries with Polish diaspora such as the United States, Canada, and Germany.
Geographic DistributionThe ONDERKO surname is most popular in Poland, with a significant presence in the United States, Canada, and Germany.
VariationsThere are no known variations of the ONDERKO surname.
Migration and ImmigrationThe migration and immigration history of the ONDERKO family is not extensively documented.