Heffernan

6,562 people in the United States were counted with the surname Heffernan in the 2020 census, making it the 5,151st most common in the country. That is about one person in 45,500.

By the numbers

People: 6,562
Rank: 5,151st
How common: 1 in 45,500
Per 100,000: 2.2

Where the name comes from

Origin Irish

Anglicized form of Irish Ó hIfearnáin (“descendant of Ifearnán”), a personal name derived from a diminutive form of ifreannach (“demon”), from ifreann (“hell”).

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

Who bears the name

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

White, not Hispanic 91.5%
Hispanic or Latino 3.5%
Two or more races, not Hispanic 3.2%
Asian or Pacific Islander, not Hispanic 1.4%
Black, not Hispanic 0.3%
American Indian or Alaska Native, not Hispanic 0.09%

Notable people called Heffernan

Robert Heffernan (born 1978)Irish race walker

People named Heffernan with articles in the most Wikipedia languages. Data from Wikidata (CC0).

Surnames like Heffernan

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.