McSweeney

McSweeney is the 8,581st most common surname in the United States, shared by 3,679 people at the 2020 census. That is about one person in 81,200.

By the numbers

People: 3,679
Rank: 8,581st
How common: 1 in 81,200
Per 100,000: 1.2

Where the name comes from

Origin Irish

Anglicized form of Irish Mac Suibhne. Compare Sweeney.

Etymology from Wiktionary, used under CC BY-SA 4.0.

Who bears the name

How people with the surname McSweeney described their own race and Hispanic origin at the 2020 census:

White, not Hispanic 90.2%
Hispanic or Latino 4.4%
Two or more races, not Hispanic 2.8%
Black, not Hispanic 1.7%
Asian or Pacific Islander, not Hispanic 0.7%
American Indian or Alaska Native, not Hispanic 0.2%

Surnames like McSweeney

Try it on yourself

Source: US Census Bureau, Frequently Occurring Surnames, 2020. The Census describes the file as the surnames borne by 100 or more people; rarer names are not published. The line is not quite exact, and 617 published names come in under it, the smallest at 92 people. Race and Hispanic origin are self-reported. Rates are worked out against the 298.9 million people the file's own figures are calculated on, which is fewer than the census counted in all: the difference is everyone whose surname was too rare to publish.