View the most religious surnames in Ireland

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

The surname Duffan is found most frequently in The United States. It can occur in the variant forms:. Click here to see other possible spellings of this last name.

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

The surname Duffan is the 3,798,600^th most numerous family name in the world It is held by around 1 in 269,909,108 people. The surname Duffan is primarily found in The Americas, where 96 percent of Duffan reside; 74 percent reside in North America and 74 percent reside in Anglo-North America.

This last name is most commonly used in The United States, where it is held by 19 people, or 1 in 19,076,786. In The United States it is primarily found in: Pennsylvania, where 63 percent live, Virginia, where 16 percent live and California, where 11 percent live. Outside of The United States this surname occurs in 4 countries. It also occurs in Panama, where 19 percent live and Northern Ireland, where 4 percent live.

Duffan Family Population Trend ^{historical fluctuation}

The incidence of Duffan has changed over time. In The United States the number of people who held the Duffan surname declined 10 percent between 1880 and 2014.

Duffan Last Name Statistics ^demography

The religious devotion of those bearing the Duffan surname is predominantly Catholic (100%) in Ireland.

In The United States those holding the Duffan surname are 21.77% more likely to be registered Democrats than The US average, with 75% being registered to vote for the party.

Duffan earn a lot less than the average income. In United States they earn 38.82% less than the national average, earning $26,400 USD per year.