View the most religious surnames in Ireland

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

The surname McIroy occurs in The United States more than any other country or territory. It may be rendered as:. Click here for other possible spellings of this surname.

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

The surname McIroy is the 6,723,624^th most frequently used surname on earth, held by around 1 in 910,943,240 people. McIroy is predominantly found in The Americas, where 63 percent of McIroy live; 63 percent live in North America and 63 percent live in Anglo-North America.

The last name is most commonly used in The United States, where it is carried by 5 people, or 1 in 72,491,787. In The United States McIroy is most common in: Illinois, where 80 percent are found and California, where 20 percent are found. Barring The United States this surname exists in 3 countries. It also occurs in England, where 13 percent are found and Scotland, where 13 percent are found.

McIroy Family Population Trend ^{historical fluctuation}

The prevalency of McIroy has changed over time. In The United States the number of people carrying the McIroy last name contracted 17 percent between 1880 and 2014.

McIroy Last Name Statistics ^demography

The religious devotion of those bearing the McIroy surname is chiefly Presbyterian (67%) in Ireland.