The quantity of people with the surname Thomasen that we can find in each country can help us discern the origin of the surname Thomasen, as logic tells us that the place with the most people surnamed Thomasen will be the country or area of origin of the surname Thomasen.
Globalization can make the surname Thomasen 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 Thomasen greatly aids all those who seek a deeper knowledge about the surname Thomasen.