View the most partisan surnames in The United States

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

The surname Riordan (Arabic: ريوردان, Hindi: रिओर्डन, Russian: Риордан) occurs in The United States more than any other country/territory. It can appear in the variant forms:. Click here to see other potential spellings of this name.

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

This last name is the 27,435^th most common family name worldwide, held by approximately 1 in 371,908 people. The last name occurs predominantly in The Americas, where 61 percent of Riordan live; 61 percent live in North America and 61 percent live in Anglo-North America. Riordan is also the 569,299^th most commonly held first name on earth It is held by 246 people.

It is most widespread in The United States, where it is held by 11,571 people, or 1 in 31,325. In The United States Riordan is most prevalent in: New York, where 13 percent reside, California, where 10 percent reside and Illinois, where 10 percent reside. Beside The United States it exists in 69 countries. It is also found in Ireland, where 13 percent reside and Australia, where 12 percent reside.

Riordan Family Population Trend ^{historical fluctuation}

The incidence of Riordan has changed over time. In The United States the number of people carrying the Riordan last name increased 1,195 percent between 1880 and 2014; in Ireland it declined 47 percent between 1901 and 2014; in England it increased 1,311 percent between 1881 and 2014; in Scotland it increased 1,025 percent between 1881 and 2014 and in Wales it increased 348 percent between 1881 and 2014.

Riordan Last Name Statistics ^demography

The religious adherence of those carrying the surname is predominantly Catholic (100%) in Ireland.

In The United States those holding the Riordan last name are 3.42% more likely to be registered with the Republican Party than The US average, with 50.19% being registered to vote for the political party.

The amount Riordan earn in different countries varies markedly. In South Africa they earn 53.85% more than the national average, earning R 365,616 per year; in United States they earn 18.87% more than the national average, earning $51,290 USD per year and in Canada they earn 9.49% more than the national average, earning $54,398 CAD per year.