View the most religious surnames in Ireland

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

The last name McIroy is found most frequently in The United States. It can also be found as a variant:. Click here to see other potential spellings of this surname.

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

The surname is the 6,723,624^th most common surname worldwide, borne by around 1 in 910,943,240 people. McIroy occurs predominantly in The Americas, where 63 percent of McIroy reside; 63 percent reside in North America and 63 percent reside in Anglo-North America.

The last name is most frequently used in The United States, where it is held by 5 people, or 1 in 72,491,787. In The United States McIroy is most common in: Illinois, where 80 percent reside and California, where 20 percent reside. Without taking into account The United States this surname exists in 3 countries. It is also found in England, where 13 percent reside and Scotland, where 13 percent reside.

McIroy Family Population Trend ^{historical fluctuation}

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

McIroy Last Name Statistics ^demography

The religious devotion of those bearing the last name is primarily Presbyterian (67%) in Ireland.