Hayley Mills
There are approximately 24 people named Hayley Mills living in the United States today. That makes this name combination very rare, occurring at a rate of about 1 in 14,281,431 Americans.
This estimate combines SSA birth records for the first name Hayley with Census Bureau frequency data for the surname Mills. Below you will find a breakdown of both names, including popularity trends, gender data, and Census demographics where available.
Expected bearers
24
1 in 14,281,431
Named Hayley
50K
Alive today
Named Mills
167K
Alive today
US population
343M
Denominator
Estimated living: 50K
Rarity: Uncommon
Gender: Female
Peak year: 1993
Average age: 28
Top Census group: White (83.6%)
Estimated bearers: 167K
Rarity: Common
Census rank: #187
Per 100K: 48.66
Top ancestry: White (74.6%)
First name trend
Hayley: popularity over time
Year-by-year SSA birth registrations for the first name Hayley. The peak year was 1993 with 2,624 births. The average person named Hayley today is 28 years old.
Babies born per year
Demographics
Ancestry and ethnicity for Hayley
Self-reported race and ethnicity breakdown for people with the first name Hayley, from the 2020 US Census Bureau first-name tables. The largest published group is White at 83.6%.
The bar chart below shows how people with the first name Hayley described their own race and ethnicity on the 2020 Census form. These are self-reported numbers, and they describe the population who happened to carry the name Hayley at the time of the Census. A first name does not determine a person's race or ethnicity.
- White83.6% · 39,355
- Hispanic or Latino7.7% · 3,602
- Two or more races4.3% · 2,038
- Asian and Pacific Islander2.0% · 945
- Black or African American1.8% · 860
- American Indian and Alaska Native0.6% · 264
Ethnicity
Ancestry of the Mills surname
Self-reported race and ethnicity breakdown for people with the surname Mills, from the 2020 US Census Bureau. The largest group is White at 74.6%.
The bar chart below shows how people with the surname Mills described their own race and ethnicity on the 2020 Census form. These are self-reported numbers, and they describe the population who happened to carry the surname Mills at the time of the Census. A surname does not determine a person's race or ethnicity.
- White74.6% · 108,457
- Black or African American16.5% · 23,949
- Two or more races4.2% · 6,149
- Hispanic or Latino3.3% · 4,797
- American Indian and Alaska Native0.8% · 1,165
- Asian and Pacific Islander0.6% · 931
Methodology
How we calculated this
The first name Hayley has a living-bearer frequency of 0.0145% of the US population, based on 49,732 estimated living Americans carrying this first name (from SSA birth records going back to 1880, adjusted for mortality using CDC life tables).
Even though the Census Bureau now publishes first-name tables, we do not use that file as the main first-name input for this estimate. The latest first-name Census snapshot is from 2020, which makes it 6 years old today. Because Census first-name data is only released once every 10 years, SSA birth records plus CDC survival rates give a better current estimate of how many people are likely alive with the name Hayley right now.
The surname Mills appears at a rate of 48.66 per 100,000 residents in the 2020 Census Bureau surname file, which translates to a frequency of 0.0487%.
Multiplying these two independent frequencies against the current US population of 342,754,338 gives an expected count of approximately 24 people with the full name Hayley Mills. This assumes statistical independence between first and last names, which is a simplification but produces reasonable estimates for most combinations.
Related
Other people with the surname Mills
FAQ
Hayley Mills: questions and answers
How many people are named Hayley Mills?
We estimate approximately 24 people in the United States share the full name Hayley Mills. That works out to about 1 in 14,281,431 Americans. This is calculated by combining the first-name frequency (0.0145%) with the surname frequency (48.66 per 100K) against the current US population.
How rare is the name Hayley Mills?
We classify Hayley Mills as "Very Rare". About 1 in 14,281,431 Americans share this exact first and last name combination.
Is Hayley a male or female name?
Hayley is predominantly female. Out of 51,269 total SSA registrations, 0.1% were male and 99.9% were female. See the full Hayley profile for detailed gender data.
Where does this data come from?
First-name data comes from the Social Security Administration's national baby name files (1880 to 2024). Surname data comes from the 2020 US Census Bureau decennial surname tables. Living-bearer estimates use CDC actuarial life tables to adjust for mortality. Read the full methodology.
How many Americans are named Hayley Mills?
For a faster, more casual read, check HowManyOfMe.org — our sister site built around that single question.