View the most religious surnames in Ireland

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

The last name Brennan (Arabic: برنن, Russian: Бреннан) occurs in The United States more than any other country/territory. It may appear in the variant forms:. For other possible spellings of Brennan click here.

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

Brennan is the 3,881^st most numerous family name internationally, borne by approximately 1 in 50,542 people. The last name Brennan occurs mostly in The Americas, where 45 percent of Brennan reside; 44 percent reside in North America and 44 percent reside in Anglo-North America. It is also the 55,309^th most prevalent first name world-wide, borne by 11,642 people.

Brennan is most commonly held in The United States, where it is held by 69,033 people, or 1 in 5,251. In The United States Brennan is primarily concentrated in: Pennsylvania, where 8 percent are found, Massachusetts, where 6 percent are found and New Jersey, where 6 percent are found. Besides The United States this last name exists in 113 countries. It also occurs in Ireland, where 15 percent are found and England, where 14 percent are found.

Brennan Family Population Trend ^{historical fluctuation}

The occurrence of Brennan has changed over time. In The United States the share of the population with the surname increased 577 percent between 1880 and 2014; in Ireland it increased 150 percent between 1901 and 2014; in England it increased 689 percent between 1881 and 2014; in Scotland it increased 927 percent between 1881 and 2014 and in Wales it increased 882 percent between 1881 and 2014.

Brennan Last Name Statistics ^demography

The religious adherence of those holding the Brennan last name is predominantly Catholic (97%) in Ireland.

In The United States those holding the Brennan last name are 6.13% more likely to be registered with the Republican Party than The US average, with 52.9% registered with the political party.

The amount Brennan earn in different countries varies greatly. In Norway they earn 7.81% less than the national average, earning 319,065 kr per year; in South Africa they earn 125.66% more than the national average, earning R 536,256 per year; in United States they earn 14.75% more than the national average, earning $49,513 USD per year and in Canada they earn 6.14% more than the national average, earning $52,735 CAD per year.