View the highest/lowest earning families in Northern Ireland

Where Does The Last Name Ilroy Come From? ^{nationality or country of origin}

The surname Ilroy is carried by more people in Belgium than any other country/territory. It may appear as:. For other possible spellings of this surname click here.

How Common Is The Last Name Ilroy? ^{popularity and diffusion}

The surname Ilroy is the 3,730,171^st most commonly held last name globally. It is borne by approximately 1 in 260,269,497 people. The last name occurs predominantly in Europe, where 89 percent of Ilroy are found; 82 percent are found in Western Europe and 82 percent are found in Gallo-Europe. It is also the 3,684,242^nd most frequently held given name on earth. It is borne by 10 people.

The surname is most commonly used in Belgium, where it is borne by 22 people, or 1 in 522,575. In Belgium it is most numerous in: Walloon Region, where 100 percent live. Not including Belgium this last name exists in 4 countries. It is also common in The United States, where 11 percent live and Denmark, where 4 percent live.

Ilroy Family Population Trend ^{historical fluctuation}

The frequency of Ilroy has changed over time. In The United States the share of the population with the surname contracted 57 percent between 1880 and 2014.