How Many People Are Named Sandy Duncan?
There are approximately 28 people named Sandy Duncan living in the United States today. That makes this name combination rare, occurring at a rate of about 1 in 12,241,226 Americans.
This estimate combines SSA birth records for the first name Sandy with Census Bureau frequency data for the surname Duncan. Below you will find a breakdown of both names, including popularity trends, gender data, and ancestry information.
Estimated People with This Name
28
1 in 12,241,226 Americans
Combination Rarity
Rare
First Name
View full profileSandy
Last Name
View full profileDuncan
Sandy: Popularity Over Time
Year-by-year SSA birth registrations for the first name Sandy. The peak year was 1960 with 3,821 births. The average person named Sandy today is 56 years old.
Ancestry of the Duncan Surname
Self-reported race and ethnicity breakdown for people with the surname Duncan, from the 2010 U.S. Census Bureau.
How we calculated this
The first name "Sandy" has an estimated frequency of 0.0179% among living Americans, based on SSA birth records from 1880 to 2024 adjusted for mortality using CDC 2023 life tables.
The surname "Duncan" appears at a rate of 45.83 per 100,000 people in the 2010 U.S. Census.
Multiplying these frequencies against the U.S. population of ~343 million gives 28 estimated people. This assumes first names and last names are statistically independent. Full methodology.
Other people named Sandy
Other people with the surname Duncan
Sandy Duncan: Questions and Answers
How many people are named Sandy Duncan?
We estimate approximately 28 people named Sandy Duncan are alive in the United States today. The first name Sandy is shared by 61,360 Americans, and the surname Duncan is shared by 153,940.
How rare is the name Sandy Duncan?
This name combination is classified as Rare, occurring at a rate of about 1 in 12,241,226 Americans. The first name Sandy is uncommon and the surname Duncan is common.
Is Sandy a male or female name?
Sandy is predominantly female, with 13.1% of bearers being male and 86.9% female. It peaked in popularity in 1960 and the average bearer today is 56 years old.
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. Surname data comes from the 2010 U.S. Census Bureau. Full methodology.
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