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