Thanks to this world map that shows the density of people with the surname Westerlond in different countries, you can get an idea not only of the popularity of the surname Westerlond in each country but also of the different migrations of people surnamed Westerlond.
The quantity of people with the surname Westerlond that we can find in each country can help us discern the origin of the surname Westerlond, as logic tells us that the place with the most people surnamed Westerlond will be the country or area of origin of the surname Westerlond.