Hermione Granger
There are approximately 1 people named Hermione Granger living in the United States today. That makes this name combination very rare, occurring at a rate of about 1 in 342,754,338 Americans.
This estimate combines SSA birth records for the first name Hermione with Census Bureau frequency data for the surname Granger. Below you will find a breakdown of both names, including popularity trends, gender data, and Census demographics where available.
Expected bearers
1
1 in 342,754,338
Named Hermione
1.6K
Alive today
Named Granger
19K
Alive today
US population
343M
Denominator
Estimated living: 1.6K
Rarity: Rare
Gender: Female
Peak year: 2024
Average age: 12
Top Census group: White (32.5%)
Estimated bearers: 19K
Rarity: Uncommon
Census rank: #2,110
Per 100K: 5.58
Top ancestry: White (75.0%)
First name trend
Hermione: popularity over time
Year-by-year SSA birth registrations for the first name Hermione. The peak year was 2024 with 122 births. The average person named Hermione today is 12 years old.
Babies born per year
Demographics
Ancestry and ethnicity for Hermione
Self-reported race and ethnicity breakdown for people with the first name Hermione, from the 2020 US Census Bureau first-name tables. The largest published group is White at 32.5%.
The bar chart below shows how people with the first name Hermione 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 Hermione at the time of the Census. A first name does not determine a person's race or ethnicity.
- White32.5% · 394
- Hispanic or Latino31.2% · 378
- Black or African American22.8% · 276
- Asian and Pacific Islander7.0% · 85
- Two or more races5.4% · 65
- American Indian and Alaska Native1.2% · 15
Ethnicity
Ancestry of the Granger surname
Self-reported race and ethnicity breakdown for people with the surname Granger, from the 2020 US Census Bureau. The largest group is White at 75.0%.
The bar chart below shows how people with the surname Granger 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 Granger at the time of the Census. A surname does not determine a person's race or ethnicity.
- White75.0% · 12,506
- Black or African American16.2% · 2,700
- Hispanic or Latino4.0% · 660
- Two or more races3.6% · 604
- American Indian and Alaska Native0.7% · 112
- Asian and Pacific Islander0.6% · 102
Methodology
How we calculated this
The first name Hermione has a living-bearer frequency of 0.0005% of the US population, based on 1,587 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 Hermione right now.
The surname Granger appears at a rate of 5.58 per 100,000 residents in the 2020 Census Bureau surname file, which translates to a frequency of 0.0056%.
Multiplying these two independent frequencies against the current US population of 342,754,338 gives an expected count of approximately 1 people with the full name Hermione Granger. 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 Granger
FAQ
Hermione Granger: questions and answers
How many people are named Hermione Granger?
We estimate approximately 1 people in the United States share the full name Hermione Granger. That works out to about 1 in 342,754,338 Americans. This is calculated by combining the first-name frequency (0.0005%) with the surname frequency (5.58 per 100K) against the current US population.
How rare is the name Hermione Granger?
We classify Hermione Granger as "Very Rare". About 1 in 342,754,338 Americans share this exact first and last name combination.
Is Hermione a male or female name?
Hermione is predominantly female. Out of 1,744 total SSA registrations, 0.0% were male and 100.0% were female. See the full Hermione 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 people share the full name Hermione Granger?
For a faster, more casual read, check HowManyOfMe.org — our sister site built around that single question.