View the most religious surnames in Ireland

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

Gillagan is more frequently found in The United States than any other country or territory. It may occur as a variant:. For other possible spellings of Gillagan click here.

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

Gillagan is the 10,311,814^th most frequently used family name throughout the world. It is borne by around 1 in 2,147,483,647 people. The last name Gillagan occurs predominantly in The Americas, where 67 percent of Gillagan are found; 67 percent are found in North America and 67 percent are found in Anglo-North America.

The surname Gillagan is most commonly occurring in The United States, where it is carried by 2 people, or 1 in 181,229,466. In The United States it is most numerous in: Idaho, where 50 percent are found and New Jersey, where 50 percent are found. Apart from The United States it exists in one country. It also occurs in England, where 33 percent are found.

Gillagan Family Population Trend ^{historical fluctuation}

The frequency of Gillagan has changed through the years. In The United States the number of people bearing the Gillagan last name decreased 90 percent between 1880 and 2014 and in England it decreased 67 percent between 1881 and 2014.

Gillagan Last Name Statistics ^demography

The religious devotion of those holding the surname is primarily Catholic (100%) in Ireland.