How Many People Are Named Su?
An estimated 593 people in the United States have the first name Su. It is predominantly female (95.4%). The average bearer is 45 years old, and Su peaked in popularity in 1957 with 22 births that year.
Below you will find a full statistical profile of Su as a first name in the United States, including gender data, a year-by-year popularity timeline going back to 1880, a decade breakdown, and state-by-state birth registrations. You can also check how many people share the full name Su paired with any surname.
Estimated Living Americans
593
About 1 in 578,001 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
95.4% confidence
Average Age
45
years old
Peak Year
1957
22 births
Total Registered
724
since 1880
Gender Distribution for Su
Su is predominantly female (95.4%), though 33 male births have been registered. It functions as a unisex name for a small percentage of bearers.
Su as a male name
Ranked #10,586 in 2016
7 male births in 2016
Peak: 2016 (7 births)
Su as a female name
Ranked #17,307 in 2023
5 female births in 2023
Peak: 1957 (22 births)
Su: Popularity Over Time
SSA records for Su span from the 1930s to the 2020s, covering 10 decades of naming data. The most popular decade for this name was the 1950s, when 141 babies were registered. Su has declined significantly from its peak in the 1950s. Recent registrations are a fraction of what they were at the name's height.
Su by Decade
How has Su tracked across different eras? The table below groups all SSA birth registrations into 10-year periods, with separate male and female counts. The colored bar shows each decade's share relative to the peak.
Su by State
Su + Last Name Combinations
How many people share a full name with Su as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Su
Other first names starting with S with a similar number of bearers.
Su: Questions and Answers
How many people in the U.S. are named Su?
We estimate approximately 593 people named Su are alive in the United States today. This is based on SSA birth records from 1880 to 2024, adjusted for mortality using CDC life tables. About 1 in 578,001 Americans share this first name.
Is Su a common name?
Su is classified as "Very Rare" and is more popular than 86.1% of all first names in the SSA database. A total of 724 births have been registered with this name since 1880.
When was Su most popular?
Su reached peak popularity in 1957, when 22 babies were given this name. The average age of a living person named Su is approximately 45 years old, reflecting when the name was most commonly given.
Is Su a female name?
Su is predominantly female. 95.4% of people with this name are female. See the gender breakdown above for full details.
How many Su Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Su Smith, Su Johnson, Su Williams. You can also search any combination on our homepage.
Where does this data come from?
Our estimates use Social Security Administration birth records (1880 to 2024), adjusted for survival using CDC 2023 life tables broken down by sex. The U.S. population figure (342,754,338) is from the Census Bureau's July 2025 estimate. Full methodology.
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