Mahaffey

At the 2020 census, 7,645 Americans bore the surname Mahaffey — 4,514th out of 156,621 surnames on file. That is about one person in 39,100.

By the numbers

People: 7,645
Rank: 4,514th
How common: 1 in 39,100
Per 100,000: 2.6

Where the name comes from

Origin Irish

Anglicized form of Irish Mac Dhuibhshíthe (“son of Dhuibhshíth”), a personal name composed of the elements dubh (“black”) + síth (“peace”). Compare McAfee.

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

Who bears the name

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

White, not Hispanic 87.6%
Black, not Hispanic 4.6%
Two or more races, not Hispanic 3.5%
Hispanic or Latino 3.4%
Asian or Pacific Islander, not Hispanic 0.5%
American Indian or Alaska Native, not Hispanic 0.4%

Surnames like Mahaffey

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.