View the most religious surnames in Ireland

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

The surname Reillys is found most frequently in The United States. It may be found as:. For other potential spellings of this surname click here.

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

The surname Reillys is the 7,593,402^nd most prevalent last name in the world, borne by approximately 1 in 1,214,590,986 people. The surname occurs predominantly in The Americas, where 50 percent of Reillys live; 50 percent live in North America and 50 percent live in Anglo-North America.

The surname is most frequently held in The United States, where it is borne by 3 people, or 1 in 120,819,644. In The United States Reillys is most prevalent in: Arizona, where 33 percent are found, Illinois, where 33 percent are found and Pennsylvania, where 33 percent are found. Excluding The United States it exists in 3 countries. It is also common in Ireland, where 17 percent are found and Australia, where 17 percent are found.

Reillys Family Population Trend ^{historical fluctuation}

The prevalency of Reillys has changed through the years. In Ireland the share of the population with the surname declined 75 percent between 1901 and 2014.

Reillys Last Name Statistics ^demography

The religious devotion of those carrying the Reillys last name is predominantly Catholic (100%) in Ireland.