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