Thanks to this world map that shows the density of people with the surname Johnroe in different countries, you can get an idea not only of the popularity of the surname Johnroe in each country but also of the different migrations of people surnamed Johnroe.
The quantity of people with the surname Johnroe that we can find in each country can help us discern the origin of the surname Johnroe, as logic tells us that the place with the most people surnamed Johnroe will be the country or area of origin of the surname Johnroe.
Globalization can make the surname Johnroe 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 Johnroe greatly aids all those who seek a deeper knowledge about the surname Johnroe.