Dizzy Gillespie
There are approximately 1 people named Dizzy Gillespie 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 Dizzy with Census Bureau frequency data for the surname Gillespie. 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 Dizzy
5
Alive today
Named Gillespie
46K
Alive today
US population
343M
Denominator
Estimated living: 5
Rarity: Very Rare
Gender: Male
Peak year: 1935
Average age: 84
Estimated bearers: 46K
Rarity: Uncommon
Census rank: #836
Per 100K: 13.54
Top ancestry: White (78.6%)
First name trend
Dizzy: popularity over time
Year-by-year SSA birth registrations for the first name Dizzy. The peak year was 1935 with 8 births. The average person named Dizzy today is 84 years old.
Babies born per year
Ethnicity
Ancestry of the Gillespie surname
Self-reported race and ethnicity breakdown for people with the surname Gillespie, from the 2020 US Census Bureau. The largest group is White at 78.6%.
The bar chart below shows how people with the surname Gillespie 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 Gillespie at the time of the Census. A surname does not determine a person's race or ethnicity.
- White78.6% · 31,783
- Black or African American13.4% · 5,431
- Two or more races3.7% · 1,511
- Hispanic or Latino3.2% · 1,297
- Asian and Pacific Islander0.6% · 260
- American Indian and Alaska Native0.4% · 174
Methodology
How we calculated this
The first name Dizzy has a living-bearer frequency of 0.0000% of the US population, based on 5 estimated living Americans carrying this first name (from SSA birth records going back to 1880, adjusted for mortality using CDC life tables).
The surname Gillespie appears at a rate of 13.54 per 100,000 residents in the 2020 Census Bureau surname file, which translates to a frequency of 0.0135%.
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 Dizzy Gillespie. This assumes statistical independence between first and last names, which is a simplification but produces reasonable estimates for most combinations.
Related
Other people named Dizzy
Related
Other people with the surname Gillespie
FAQ
Dizzy Gillespie: questions and answers
How many people are named Dizzy Gillespie?
We estimate approximately 1 people in the United States share the full name Dizzy Gillespie. That works out to about 1 in 342,754,338 Americans. This is calculated by combining the first-name frequency (0.0000%) with the surname frequency (13.54 per 100K) against the current US population.
How rare is the name Dizzy Gillespie?
We classify Dizzy Gillespie as "Very Rare". About 1 in 342,754,338 Americans share this exact first and last name combination.
Is Dizzy a male or female name?
Dizzy is predominantly male. Out of 19 total SSA registrations, 100.0% were male and 0.0% were female. See the full Dizzy 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 have the full name Dizzy Gillespie?
You can see how common the name Dizzy Gillespie is on our sister site HowManyOfMe.org — same data roots, lighter UI.