Thanks to this world map that shows the density of people with the surname Ardagh in different countries, you can get an idea not only of the popularity of the surname Ardagh in each country but also of the different migrations of people surnamed Ardagh.
The quantity of people with the surname Ardagh that we can find in each country can help us discern the origin of the surname Ardagh, as logic tells us that the place with the most people surnamed Ardagh will be the country or area of origin of the surname Ardagh.
Locating at a single glance the countries where the surname Ardagh is more abundant, as well as the areas of the globe where there are hardly any people with the surname Ardagh, is of great utility for individuals interested in surnames, and specifically in the surname Ardagh, as it allows them to quickly and easily visualize the data and its distribution."