Cadillac Williams
There are approximately 1 people named Cadillac Williams 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 Cadillac 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.
Expected bearers
1
1 in 342,754,338
Named Cadillac
6
Alive today
Named Williams
1.9M
Alive today
US population
343M
Denominator
Estimated living: 6
Rarity: Very Rare
Gender: Male
Peak year: 2010
Average age: 16
Estimated bearers: 1.9M
Rarity: Very Common
Census rank: #3
Per 100K: 550.97
Top ancestry: Black (47.7%)
First name trend
Cadillac: popularity over time
Year-by-year SSA birth registrations for the first name Cadillac. The peak year was 2010 with 6 births. The average person named Cadillac today is 16 years old.
Babies born per year
Ethnicity
Ancestry of the Williams surname
Self-reported race and ethnicity breakdown for people with the surname Williams, from the 2010 US Census Bureau. The largest group is Black at 47.7%.
- Black or African American47.7%
- White45.8%
- Two or more races2.8%
- Hispanic or Latino2.5%
- American Indian and Alaska Native0.8%
- Asian and Pacific Islander0.5%
Methodology
How we calculated this
The first name Cadillac has a living-bearer frequency of 0.0000% of the US population, based on 6 estimated living Americans carrying this first name (from SSA birth records going back to 1880, adjusted for mortality using CDC life tables).
The surname Williams appears at a rate of 550.97 per 100,000 residents in the 2010 Census Bureau surname file, which translates to a frequency of 0.5510%.
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 Cadillac Williams. 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 Williams
FAQ
Cadillac Williams: questions and answers
How many people are named Cadillac Williams?
We estimate approximately 1 people in the United States share the full name Cadillac Williams. 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 (550.97 per 100K) against the current US population.
How rare is the name Cadillac Williams?
We classify Cadillac Williams as "Very Rare". About 1 in 342,754,338 Americans share this exact first and last name combination.
Is Cadillac a male or female name?
Cadillac is predominantly male. Out of 6 total SSA registrations, 100.0% were male and 0.0% were female. See the full Cadillac 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 2010 US Census Bureau decennial surname tables. Living-bearer estimates use CDC actuarial life tables to adjust for mortality. Read the full methodology.