The quantity of people with the surname Kilroy that we can find in each country can help us discern the origin of the surname Kilroy, as logic tells us that the place with the most people surnamed Kilroy will be the country or area of origin of the surname Kilroy.
Locating at a single glance the countries where the surname Kilroy is more abundant, as well as the areas of the globe where there are hardly any people with the surname Kilroy, is of great utility for individuals interested in surnames, and specifically in the surname Kilroy, as it allows them to quickly and easily visualize the data and its distribution."