How Many People Are Named Halley Williams?
There are approximately 22 people named Halley Williams living in the United States today. That makes this name combination rare, occurring at a rate of about 1 in 15,579,743 Americans.
This estimate combines SSA birth records for the first name Halley with Census Bureau frequency data for the surname Williams. Below you will find a breakdown of both names, including popularity trends, gender data, and ancestry information.
Estimated People with This Name
22
1 in 15,579,743 Americans
Combination Rarity
Rare
First Name
View full profileHalley
Last Name
View full profileWilliams
Halley: Popularity Over Time
Year-by-year SSA birth registrations for the first name Halley. The peak year was 1986 with 355 births. The average person named Halley today is 28 years old.
Ancestry of the Williams Surname
Self-reported race and ethnicity breakdown for people with the surname Williams, from the 2010 U.S. Census Bureau.
How we calculated this
The first name "Halley" has an estimated frequency of < 0.0001% among living Americans, based on SSA birth records from 1880 to 2024 adjusted for mortality using CDC 2023 life tables.
The surname "Williams" appears at a rate of 550.97 per 100,000 people in the 2010 U.S. Census.
Multiplying these frequencies against the U.S. population of ~343 million gives 22 estimated people. This assumes first names and last names are statistically independent. Full methodology.
Other people named Halley
Other people with the surname Williams
Halley Williams: Questions and Answers
How many people are named Halley Williams?
We estimate approximately 22 people named Halley Williams are alive in the United States today. The first name Halley is shared by 3,966 Americans, and the surname Williams is shared by 1,850,671.
How rare is the name Halley Williams?
This name combination is classified as Rare, occurring at a rate of about 1 in 15,579,743 Americans. The first name Halley is rare and the surname Williams is very common.
Is Halley a male or female name?
Halley is predominantly female, with 3.0% of bearers being male and 97.0% female. It peaked in popularity in 1986 and the average bearer today is 28 years old.
Where does this data come from?
First name data comes from the Social Security Administration (1880 to 2024), adjusted for survival using CDC 2023 life tables. Surname data comes from the 2010 U.S. Census Bureau. Full methodology.
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