How Many People Are Named Cliff Robertson?
There are approximately 3 people named Cliff Robertson living in the United States today. That makes this name combination very rare, occurring at a rate of about 1 in 114,251,446 Americans.
This estimate combines SSA birth records for the first name Cliff with Census Bureau frequency data for the surname Robertson. Below you will find a breakdown of both names, including popularity trends, gender data, and Census background data where it is available.
Estimated People with This Name
3
1 in 114,251,446 Americans
Combination Rarity
Very Rare
First Name
View full profileCliff
Last Name
View full profileRobertson
Cliff: Popularity Over Time
Year-by-year SSA birth registrations for the first name Cliff. The peak year was 1959 with 310 births. The average person named Cliff today is 55 years old.
Ancestry of the First Name Cliff
In the 2020 Census, the first name Cliff was most commonly recorded among people who identified as White (75.80%). The next largest recorded groups were Black (11.38%) and Asian and Pacific Islander (5.07%).
These percentages describe the people who had the first name Cliff in the 2020 Census. They do not tell you the deeper origin or meaning of the name itself.
Read this as a snapshot of who already had the name in 2020, not as a trend line. The SSA chart above is still the better way to see how Cliff rose or fell over time.
Ancestry of the Robertson Surname
The surname Robertson was most commonly recorded among people who identified as White in the 2020 Census.
This is a self-reported race and ethnicity breakdown for people who had the surname Robertson in the published Census surname tables. It gives useful context around who was recorded with the name, but it does not tell the full family history of every Boone line.
How we calculated this
The first name "Cliff" has an estimated frequency of < 0.0001% among living Americans, based on SSA birth records from 1880 to 2024 adjusted for mortality using CDC 2023 life tables.
The surname "Robertson" appears at a rate of 49.06 per 100,000 people in the 2020 U.S. Census.
We do not use the Census first-name snapshot for the main estimate because it is only published once every 10 years. The latest public first-name Census file is from 2020, which is already 6 years old. SSA birth records plus CDC survival data give a better current estimate of how many people with the first name Cliff are likely to be alive now.
Multiplying these frequencies against the U.S. population of ~343 million gives 3 estimated people. This assumes first names and last names are statistically independent. Full methodology.
Other people named Cliff
Other people with the surname Robertson
Cliff Robertson: Questions and Answers
How many people are named Cliff Robertson?
We estimate approximately 3 people named Cliff Robertson are alive in the United States today. The first name Cliff is shared by 6,401 Americans, and the surname Robertson is shared by 168,144.
How rare is the name Cliff Robertson?
This name combination is classified as Very Rare, occurring at a rate of about 1 in 114,251,446 Americans. The first name Cliff is rare and the surname Robertson is common.
Is Cliff a male or female name?
Cliff is predominantly male, with 100.0% of bearers being male and 0.0% female. It peaked in popularity in 1959 and the average bearer today is 55 years old.
What does the Census say about the first name Cliff?
In the 2020 Census, the first name Cliff was most commonly recorded among people who identified as White (75.80%). The next largest recorded groups were Black (11.38%) and Asian and Pacific Islander (5.07%). These percentages describe the people who had the name in the 2020 Census, not the deeper origin of the name itself.
Where does this data come from?
First name data comes from the Social Security Administration (1880 to 2024), adjusted for survival using CDC 2023 life tables. When available, first-name Census background data comes from the 2020 U.S. Census Bureau first-name tables. Surname data comes from the 2020 U.S. Census Bureau. Full methodology.
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