Sidney Poitier
There are approximately 1 people named Sidney Poitier 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 Sidney with Census Bureau frequency data for the surname Poitier. 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 Sidney
58K
Alive today
Named Poitier
617
Alive today
US population
343M
Denominator
Estimated living: 58K
Rarity: Uncommon
Gender: Unisex
Peak year: 1918
Average age: 46
Estimated bearers: 617
Rarity: Very Rare
Census rank: #41,359
Per 100K: 0.18
Top ancestry: Black (90.3%)
First name trend
Sidney: popularity over time
Year-by-year SSA birth registrations for the first name Sidney. The peak year was 1918 with 1,939 births. The average person named Sidney today is 46 years old.
Babies born per year
Ethnicity
Ancestry of the Poitier surname
Self-reported race and ethnicity breakdown for people with the surname Poitier, from the 2010 US Census Bureau. The largest group is Black at 90.3%.
- Black or African American90.3%
- Two or more races3.6%
- Hispanic or Latino3.2%
- White2.9%
Methodology
How we calculated this
The first name Sidney has a living-bearer frequency of 0.0169% of the US population, based on 57,897 estimated living Americans carrying this first name (from SSA birth records going back to 1880, adjusted for mortality using CDC life tables).
The surname Poitier appears at a rate of 0.18 per 100,000 residents in the 2010 Census Bureau surname file, which translates to a frequency of 0.0002%.
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 Sidney Poitier. This assumes statistical independence between first and last names, which is a simplification but produces reasonable estimates for most combinations.
Related
Other people named Sidney
FAQ
Sidney Poitier: questions and answers
How many people are named Sidney Poitier?
We estimate approximately 1 people in the United States share the full name Sidney Poitier. That works out to about 1 in 342,754,338 Americans. This is calculated by combining the first-name frequency (0.0169%) with the surname frequency (0.18 per 100K) against the current US population.
How rare is the name Sidney Poitier?
We classify Sidney Poitier as "Very Rare". About 1 in 342,754,338 Americans share this exact first and last name combination.
Is Sidney a male or female name?
Sidney is predominantly unisex. Out of 108,736 total SSA registrations, 77.3% were male and 22.7% were female. See the full Sidney 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.