View the most partisan surnames in The United States

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

McIlwain is most common in The United States. It can also be rendered as a variant:. For other potential spellings of this last name click here.

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

This last name is the 97,559^th most widely held surname in the world, borne by around 1 in 1,498,262 people. The surname occurs mostly in The Americas, where 89 percent of McIlwain are found; 89 percent are found in North America and 89 percent are found in Anglo-North America.

The surname is most frequently occurring in The United States, where it is carried by 4,030 people, or 1 in 89,940. In The United States McIlwain is mostly concentrated in: South Carolina, where 12 percent live, Alabama, where 10 percent live and North Carolina, where 9 percent live. Besides The United States this last name occurs in 23 countries. It also occurs in Australia, where 12 percent live and Canada, where 6 percent live.

McIlwain Family Population Trend ^{historical fluctuation}

The occurrence of McIlwain has changed over time. In The United States the number of people who held the McIlwain last name increased 681 percent between 1880 and 2014; in England it increased 479 percent between 1881 and 2014; in Scotland it fell 25 percent between 1881 and 2014; in Wales it increased 133 percent between 1881 and 2014 and in Ireland it fell 99 percent between 1901 and 2014.

McIlwain Last Name Statistics ^demography

The religious devotion of those carrying the last name is predominantly Presbyterian (76%) in Ireland.

In The United States those bearing the McIlwain surname are 7.25% more likely to be registered Republicans than The US average, with 54.02% registered to vote for the political party.

The amount McIlwain earn in different countries varies somewhat. In United States they earn 3.86% less than the national average, earning $41,485 USD per year and in Canada they earn 5.3% more than the national average, earning $52,318 CAD per year.