View the most partisan surnames in The United States

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

The last name Osullivan is carried by more people in The United States than any other country/territory. It can be rendered as a variant: Ósullivan. For other possible spellings of this name click here.

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

The surname is the 33,111^th most frequently held family name globally, borne by around 1 in 454,307 people. This surname is primarily found in The Americas, where 54 percent of Osullivan live; 52 percent live in North America and 52 percent live in Anglo-North America. It is also the 2,239,265^th most commonly occurring first name worldwide, borne by 23 people.

The surname Osullivan is most commonly held in The United States, where it is borne by 11,235 people, or 1 in 32,262. In The United States Osullivan is most common in: California, where 12 percent are found, Massachusetts, where 10 percent are found and Illinois, where 7 percent are found. Other than The United States it occurs in 56 countries. It also occurs in Ireland, where 15 percent are found and Australia, where 5 percent are found.

Osullivan Family Population Trend ^{historical fluctuation}

The occurrence of Osullivan has changed over time. In The United States the number of people who held the Osullivan surname grew 4,389 percent between 1880 and 2014.

Osullivan Last Name Statistics ^demography

In The United States those holding the Osullivan surname are 4.49% more likely to be registered Democrats than The US average, with 57.72% registered with the political party.

The amount Osullivan earn in different countries varies greatly. In Norway they earn 4.04% less than the national average, earning 332,109 kr per year; in South Africa they earn 240.55% more than the national average, earning R 809,280 per year; in United States they earn 15.98% more than the national average, earning $50,046 USD per year and in Canada they earn 20.15% more than the national average, earning $59,693 CAD per year.