How rare is the last name Hennessey?

7,726 people in the United States have the last name Hennessey, about 1 in 38,687. It ranks #4,451 of 156,621 last names in the 2020 Census.

last name

HENNESSEY

#4,451

of 156,621 last names recorded in the 2020 Census

People
7,726
About
1 in 38,687
This common or more
57.2%
Who bears it

Of the 7,726 people with the last name Hennessey, 91.3% reported their origin as White, 3.7% as Hispanic or Latino and 3.1% as two or more races. These count how people described themselves on the 2020 Census, not where the name comes from.

Either side of Hennessey

#4,449 Badger · 7,728#4,449 Clem · 7,728#4,452 Caudle · 7,724#4,453 Dvorak · 7,723

Spelled almost the same

6 last names in the 2020 Census spelled within a letter or two of Hennessey, most common first.

#3,821 Hennessy · 9,053#21,026 Hennessee · 1,271#50,632 Hennesy · 446#65,688 Henness · 326#101,718 Hennesey · 189#148,665 Henesey · 111

Also a first name

As a first name, Hennessey ranks #26,142 of 53,615, with 358 people. As a baby name it peaked in 2015, with 27 births. See Hennessey as a first name

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