The quantity of people with the surname Westerduin that we can find in each country can help us discern the origin of the surname Westerduin, as logic tells us that the place with the most people surnamed Westerduin will be the country or area of origin of the surname Westerduin.
Globalization can make the surname Westerduin be found in almost every country around the globe, but being able to see the density of people residing in a country with the surname Westerduin greatly aids all those who seek a deeper knowledge about the surname Westerduin.