120
Mccostlins in the USA139228th
most common last name in the USAMccostlin Genealogy
OriginsThe origins of the McCostlin surname can be traced back to Ireland. It is likely derived from the name Costello, which has Gaelic roots and is associated with the historic province of Connacht.
Geographic DistributionThe McCostlin surname is most popular in Ireland, where it has a significant presence. It is not commonly found in other countries or regions.
VariationsThere are no known variations of the McCostlin surname.
Migration and ImmigrationThere is limited information available regarding the migration and immigration history of the McCostlin family.